Journal articles on the topic 'Sumai 3'
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Golkari, Saber, Jeannie Gilbert, Tomohiro Ban, and J. Douglas Procunier. "QTL-specific microarray gene expression analysis of wheat resistance to Fusarium head blight in Sumai-3 and two susceptible NILs." Genome 52, no. 5 (May 2009): 409–18. http://dx.doi.org/10.1139/g09-018.
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Fusarium head blight, predominantly caused by Fusarium graminearum (Schwabe) in North America, is a destructive disease that poses a serious threat to wheat ( Triticum aestivum L.) production around the world. cDNA microarrays consisting of wheat ESTs derived from a wheat – F. graminearum interaction suppressive subtractive hybridization library were used to investigate QTL-specific differential gene expression between the resistant Chinese cultivar Sumai-3 and two susceptible near isogenic lines (NILs) following inoculation with F. graminearum. Stringent conditions were employed to reduce the false discovery rate. A total of 25 wheat unigenes were found to express differentially in response to F. graminearum infection. Genes encoding pathogenesis-related (PR) proteins such as β-1,3-glucanase (PR-2), wheatwins (PR-4), and thaumatin-like proteins (PR-5) showed a significant upregulation in genotypes having the Sumai-3 3BS region. For these three genes, the gene activity was significantly less in the genotype (NIL-3) lacking the Sumai-3 3BS segment. Significant upregulation of phenylalanine ammonia-lyase was detected only in the resistant Sumai-3, indicating the importance of both the 2AL and 3BS regions in the activation of effective defense responses to infection by F. graminearum. Differences in gene expression between the resistant Sumai-3 and the susceptible NILs were found to be mainly quantitative in nature.
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Chrpová, J., V. Šíp, T. Sedláček, L. Štočková, O. Veškrna, and P. Horčička. "Effectiveness of marker-based selection for Fusarium head blight resistance in spring wheat." Czech Journal of Genetics and Plant Breeding 47, Special Issue (October 20, 2011): S123—S129. http://dx.doi.org/10.17221/3266-cjgpb.
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The effect of selection for two donor-QTL from Fusarium head blight (FHB) resistant spring wheat variety Sumai 3 on the reduction of deoxynivalenol (DON) content and FHB index was evaluated in field trials over two years (2008, 2009) following artificial inoculation with Fusarium culmorum. This study was conducted on populations of recombinant inbred lines derived from two crosses, Sumai 3/Swedget and Sumai 3/SG-S 191-01. DON content and FHB index were significantly reduced in both crosses in the genotype classes with two stacked donor QTL on chromosomes 3B and 5A in comparison to genotype classes with no donor QTL. In the cross Sumai 3/Swedget the selection for QTL alleles from 3B and 5A resulted in a 63.4% reduction in DON content, and a 51.8% reduction in the FHB index. Similarly, there was a 35.9% and 31.9% reduction, respectively, in the cross Sumai 3/SG-S 191-01. The single effect of the donor-QTL allele from 3B was significant only in the cross Sumai 3/Swedjet. The presence or absence of awns affected both DON content and FHB index in both populations, but was only significantly in the cross Sumai 3/SG-S 191-01. In this cross the effect of selection for fully awned genotypes was particularly evident on a reduction of both DON and FHB index in classes with neither donor QTL, or the 3B QTL. However, the data indicate that the “awnedness” effect on FHB resistance may be highly variable and is probably greater on reducing FHB symptoms than on DON content. The results confirmed that marker-based introgression of resistance QTLs on chromosomes 3B and 5A in traditional breeding materials can enrich populations for resistance types, but it was also shown that the effect of marker-based selection need not be large in all crosses and a similar effect can probably be reached by indirect selection for some FHB-related traits.
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Xie, G. Q., M. C. Zhang, S. Chakraborty, and C. J. Liu. "The effect of 3BS locus of Sumai 3 on Fusarium head blight resistance in Australian wheats." Australian Journal of Experimental Agriculture 47, no. 5 (2007): 603. http://dx.doi.org/10.1071/ea05250.
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The 3BS allele of Sumai 3 has been the main source of Fusarium head blight (FHB) resistance worldwide. Using molecular markers and FHB resistance screenings, we have analysed the effects of this allele in two backcross and two 4-way F2 populations derived from elite Australian cultivars. Compared to individuals without the Sumai 3 allele, individuals with the allele showed an average 32.0% reduction in FHB severity as measured by number of diseased spikelets. This value was slightly reduced to 29.2% when the total number of spikelets was taken into account by expressing severity as the proportion of diseased spikelets. When compared to the parental cultivars, progeny with the 3BS allele of Sumai 3 offered, on average, 43.3% reduction in FHB severity. Significant differences were not detected between progeny that were homozygous or heterozygous for the 3BS locus, indicating a dominant inheritance of this locus. These results confirm that the 3BS allele controls a large component of the FHB resistance in Sumai 3, which can be readily incorporated and detected in backcross populations using molecular markers. The materials derived from this study could offer significant benefits to the Australian wheat breeding programs.
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Berraies, S., R. E. Knox, R. M. DePauw, F. R. Clarke, A. R. Martin, A. G. Xue, J. A. Gilbert, et al. "Effectiveness of multigenerational transfer of Sumai 3 Fusarium head blight resistance in hard red spring wheat breeding populations." Canadian Journal of Plant Science 100, no. 2 (April 1, 2020): 156–74. http://dx.doi.org/10.1139/cjps-2019-0066.
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Several quantitative trait loci (QTL) have been identified for Fusarium head blight (FHB) resistance in the cultivar Sumai 3. Wheat breeders need to know which Sumai 3 loci are present in derived lines used as parents for effective marker-assisted selection for genetic improvement. This study was conducted to identify the loci in Sumai 3 derived parents that contribute FHB resistance in breeding populations. Three doubled haploid (DH) populations utilizing Sumai 3 derived parents, ND3085, ND744, and Alsen, were evaluated during 2007 and 2008 in FHB nurseries near Carman, MB, Ottawa, ON and Charlottetown, PE. The percentage of incidence, severity, Fusarium-damaged kernels (FDK), and deoxynivalenol (DON) accumulation were measured, and FHB index calculated. DNA markers at six FHB resistance loci detected in Sumai 3 were evaluated on the populations. For each trait, a t test was applied to means of observations pooled by parental type of each marker to determine which loci contributed to resistance. The alleles at 3BS and 5AS most frequently contributed to Type I and Type II FHB resistance, as well as to reduced FDK and DON in all three populations. Markers revealed resistance on 3BS and 5AS in Alsen, ND3085, and ND744, on 3BSc, 4D, and 6BS in ND744, on 4D in ND3085, and on 6BS in Alsen. In some environments, the susceptible parent Infinity contributed minor QTL on 2D, 3BSc, and 6BS. Likewise, Helios contributed minor QTL on 5AS and 6BS.
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Coelho, Mônica Bossardi, Sandra Maria Mansur Scagliusi, Maria Imaculada Pontes Moreira Lima, Luciano Consoli, and Magali Ferrari Grando. "Androgenic response of wheat genotypes resistant to fusariosis." Pesquisa Agropecuária Brasileira 53, no. 5 (May 2018): 575–82. http://dx.doi.org/10.1590/s0100-204x2018000500006.
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Abstract: The objective of this work was to assess the androgenic response, via microspore culture, of wheat genotypes with different levels of resistance to Gibberella zeae. The number of androgenic embryos per spike, and of green and albino plants was counted for the BRS 179 (moderately resistant), Frontana and Sumai 3 (resistant), and BRS 194, Embrapa 27, and Fielder (susceptible) genotypes. The degree of interference by the Fielder, Pavon 76, and Sumai 3 ovary-donor genotypes, used for co-culture with the microspore cells, was also assessed regarding androgenic response. Induction efficiency ranged from 0.33 embryo per spike for Embrapa 27 to 109.8 embryos for Frontana. Sumai 3 presented the second best response, and Embrapa 27 behaved as highly recalcitrant. The co-culture of ovaries from the Fielder genotype stands out from the others and positively interferes in the embryo induction rate. No significant differences were observed for the regeneration frequency of green plants; however, for albino plants, BRS 194 produced the highest rate. Frontana and Sumai 3 present the highest androgenic response rates and can be used in breeding programs for the rapid development of cultivars resistant to Gibberella zeae.
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Matus-Cádiz, M. A., C. J. Pozniak, G. R. Hughes, and P. Hucl. "Multiplexed PCR to screen for a major QTL carrying fusarium head blight resistance in Sumai-3 wheat." Canadian Journal of Plant Science 86, no. 3 (July 7, 2006): 711–16. http://dx.doi.org/10.4141/p05-153.
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After the initial identification of microsatellites linked to economically important traits of interest, the additional investment to simplify the screening procedure for more routine use is of interest to plant breeders. The objective was to simplify an acrylamide gel based marker-assisted selection (MAS) method to facilitate high-through put screening for Qfhs.ndsu-3BS, a major quantitative trait locus carrying fusarium head blight (FHB) resistance in Sumai-3 wheat (Triticum aestivum L.). Method simplifications included incorporating the use of (1) 96-well DNA extractions, (2) multiplexed PCR reactions using microsatellite primers gwm493 and gwm533, and (3) agarose gels. Our modified FHB-MAS method was verified by screening six resistant (Sumai-3, ND2710, McVey, BacUp, HY644, and Alsen) and 52 susceptible parents and subsequently used to screen 5567 common wheat breeding lines developed from Sumai-3 derivatives. This simple and rapid method allows for the screening of 1000 lines per week, which can be used to skew segregating populations towards more resistant types and thereby advance primarily early and advanced generation lines that carry at least the major FHB QTL. Key words: PCR, Fusarium, microsatellites, gwm493, gwm533, Triticum
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Ha, Xia, Birger Koopmann, and Andreas von Tiedemann. "Wheat Blast and Fusarium Head Blight Display Contrasting Interaction Patterns on Ears of Wheat Genotypes Differing in Resistance." Phytopathology® 106, no. 3 (March 2016): 270–81. http://dx.doi.org/10.1094/phyto-09-15-0202-r.
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The interaction of wheat with two ear pathogens, Magnaporthe wheat blast (MWB) and Fusarium graminearum (Fusarium head blight, FHB), was studied on the phenotypic, histological, and gene expression level. Most of the 27 wheat cultivars inoculated with MWB and F. graminearum displayed inverse disease responses to blast and FHB infection. Two cultivars, Milan and Sumai 3, were selected expressing converse disease phenotypes to blast (Milan, R)/(Sumai 3, S) and FHB (Milan, S)/(Sumai 3, R). Confocal laser scanning microscopy revealed early (12 h postinoculation) colonization of the spikelets by MWB similarly on both cultivars, while F. graminearum infected anthers of the susceptible cultivar earlier. Both pathogens grew much faster in the rachilla of susceptible than resistant cultivars, indicating that resistance is mainly expressed in this part connecting the spikelet with the rachis. In general, O2− and H2O2 levels were unrelated to disease expression in the four studied interactions. The differential disease phenotypes, fungal spread in the rachis, and colonization patterns in the spikelets were confirmed by distinct gene expression patterns. Among the eight genes analyzed, seven were more strongly induced by FHB than by blast. Genes for chitinase (Chi2), β-1,3-glucanase (PR2), a plant defensin homolog (PRPI), and peroxidase (Pox2) were strongly upregulated in Milan in response to both pathogens, while PR2 and PR5 (thaumatin-like protein) were transiently triggered by MWB on both cultivars. Upregulation of cinnamoyl-CoA reductase (CCR), cytochrome P450 (CYP709C1), and UDP-glycosyl transferase (UGT) were more prominent in ears infected with F. graminearum, while upregulation of UGT was higher in Sumai 3 when infected with either pathogen. Cultivar resistance to FHB was reflected by clearly higher expression levels of UGT and CYP709C1 in Sumai 3. The differential responses of wheat to the two ear pathogens demonstrated in this study makes it unlikely that common resistance genes exist for control of FHB and blast, suggesting the need to stack many genes associated with resistance in breeding programs for multiple resistance.
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Bokore, F. E., R. E. Knox, R. M. DePauw, F. Clarke, R. D. Cuthbert, H. L. Campbell, A. L. Brûlé-Babel, J. Gilbert, and Y. Ruan. "Validation of Molecular Markers for Use With Adapted Sources of Fusarium Head Blight Resistance in Wheat." Plant Disease 101, no. 7 (July 2017): 1292–99. http://dx.doi.org/10.1094/pdis-10-16-1421-re.
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Genetic control of resistance to Fusarium head blight (FHB) is quantitative, making phenotypic selection difficult. Genetic markers to resistance are helpful to select favorable genotypes. This study was conducted to determine if Fhb1 and Fhb5 present in the Sumai 3 source of FHB resistance occur in Sumai 3-derived North American spring wheat cultivars and to understand the appropriateness of using markers to select for the favorable alleles at these loci in breeding. Sumai 3-derived parents Alsen, ND3085, ND744, Carberry, and Glenn were used in crosses to generate 14 doubled haploid breeding populations. The parents and progeny were genotyped with five Fhb1 and three Fhb5 microsatellite markers. Progeny were selected based on performance relative to parents and other control cultivars in FHB nurseries near Portage la Prairie and Carman, MB. χ2 and t test analyses were performed on marker and FHB data. The χ2 test frequently determined the proportion of lines carrying molecular variants associated with FHB resistance increased following nursery selection for FHB. Similarly, the t test regularly demonstrated that selection for FHB resistance lowered the mean level of disease associated with resistant marker haplotypes. The study affirmed FHB resistance sources Alsen, Carberry, ND3085, and ND744 have Fhb1 and Fhb5 loci like Sumai 3, but no evidence was found that Glenn carries Fhb1 and Fhb5 resistance alleles. The results justified use of Fhb1 and Fhb5 markers for marker assisted selection in populations derived from Alsen, Carberry, ND3085, and ND744, but not Glenn. Combined or individual application of Xgwm493 and Xgwm533 in selection of genotypes carrying Fhb1, and Xgwm150, Xgwm304, and Xgwm595 for Fhb5 will enhance FHB resistance in wheat.
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Dai, Xuran, Yiwen Huang, Xinhui Xue, Shuo Yu, Teng Li, Hongwei Liu, Li Yang, Yang Zhou, Hongjie Li, and Hongjun Zhang. "Effects of Fhb1, Fhb2 and Fhb5 on Fusarium Head Blight Resistance and the Development of Promising Lines in Winter Wheat." International Journal of Molecular Sciences 23, no. 23 (November 30, 2022): 15047. http://dx.doi.org/10.3390/ijms232315047.
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The development of Fusarium head blight (FHB)-resistant winter wheat cultivars using the gene Fhb1 has been conducted in northern China. Sumai 3, a Chinese FHB-resistant spring wheat cultivar, carries three FHB resistance genes: Fhb1, Fhb2 and Fhb5. To better use these genes for increasing FHB resistance in northern China, it is necessary to elucidate the pyramiding effects of Fhb1, Fhb2 and Fhb5 in winter wheat backgrounds. Eight gene combinations involving Fhb1, Fhb2 and Fhb5 were identified in a double haploid (DH) population, and the effects on FHB resistance were evaluated in six tests. At the single gene level, Fhb1 was more efficient than the other two genes in single-floret inoculation tests, whereas Fhb5 showed better resistance than Fhb1 and Fhb2 under a natural infection test. Pyramiding Fhb1, Fhb2 and Fhb5 showed better FHB resistance than the other gene combinations. Forty-nine DH lines showing consistently better resistance than the moderately susceptible control Huaimai 20 in multiple tests were evaluated for main agronomic traits, and no difference in grain yield was found between the mean values of DH lines and the recipient parents Lunxuan 136 and Lunxuan 6, which are higher than those of recipient parent Zhoumai 16 and the donor parent Sumai 3 (p < 0.05). Based on the phenotypic and genomic composition analyses, five promising DH lines fully combined the FHB resistance of donor Sumai 3 and the elite agronomic traits from the recipient parents. This study elucidates the pyramiding effects of three FHB resistance genes and that the promising DH lines with resistance to FHB can be directly applied in wheat production or as parents in winter wheat breeding programs.
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Pritsch, Clara, Gary J. Muehlbauer, William R. Bushnell, David A. Somers, and Carroll P. Vance. "Fungal Development and Induction of Defense Response Genes During Early Infection of Wheat Spikes by Fusarium graminearum." Molecular Plant-Microbe Interactions® 13, no. 2 (February 2000): 159–69. http://dx.doi.org/10.1094/mpmi.2000.13.2.159.
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Fusarium head blight (FHB) of wheat is a crippling disease that causes severe economic losses in many of the wheat-growing regions of the world. Temporal patterns of fungus development and transcript accumulation of defense response genes were studied in Fusarium graminearum-inoculated wheat spikes within the first 48 to 76 h after inoculation (hai). Microscopy of inoculated glumes revealed that the fungus appeared to penetrate through stomata, exhibited subcuticular growth along stomatal rows, colonized glume parenchyma cells, and sporulated within 48 to 76 hai. No major differences in the timing of these events were found between Sumai 3 (resistant) and Wheaton (susceptible) genotypes. In complementary experiments, RNA was extracted from spikes at several time intervals up to 48 hai and temporal expression patterns were determined for defense response genes encoding peroxidase, PR-1, PR-2 (β-1,3-glucanase), PR-3 (chitinase), PR-4, and PR-5 (thaumatin-like protein). In both genotypes, transcripts for the six defense response genes accumulated as early as 6 to 12 hai during F. graminearum infection and peaked at 36 to 48 hai. Greater and earlier PR-4 and PR-5 transcript accumulation was observed in Sumai 3, compared with Wheaton. Our results show that the timing of defense response gene induction is correlated with F. graminearum infection.
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Stack, R. W., R. C. Frohberg, and H. Casper. "Reaction Of Spring Wheats Incorporating Sumai#3-Derived Resistance to Inoculation with Seven Fusarium Species." Cereal Research Communications 25, no. 3 (September 1997): 667–71. http://dx.doi.org/10.1007/bf03543809.
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Zhao, Mingxia, Guomei Wang, Yueqiang Leng, Humphrey Wanjugi, Pinggen Xi, Michael D. Grosz, Mohamed Mergoum, and Shaobin Zhong. "Molecular Mapping of Fusarium Head Blight Resistance in the Spring Wheat Line ND2710." Phytopathology® 108, no. 8 (August 2018): 972–79. http://dx.doi.org/10.1094/phyto-12-17-0392-r.
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ND2710 is a hard red spring wheat line with a very high level of resistance to Fusarium head blight (FHB). It was selected from the progeny of a cross between ND2603 (an advanced breeding line derived from the Sumai 3/Wheaton cross) and Grandin (a spring wheat cultivar). The FHB resistance of ND2710 is presumably derived from Sumai 3 because the other parents (Grandin and Wheaton) are very susceptible to FHB. To identify and map the quantitative trait loci (QTL) for FHB resistance in ND2710, we developed a mapping population consisting of 233 recombinant inbred lines (RILs) from the cross between ND2710 and the spring wheat cultivar Bobwhite. These RILs along with their parents and checks were evaluated for reactions to FHB in three greenhouse experiments and one field experiment during 2013 to 2014. The population was also genotyped with the wheat 90K iSelect single-nucleotide polymorphism (SNP) assay, and a genetic linkage map was developed with 1,373 non-cosegregating SNP markers, which were distributed on all 21 wheat chromosomes spanning 914.98 centimorgans of genetic distance. Genetic analyses using both phenotypic and genotypic data identified one major QTL (Qfhb.ndwp-3B) on the short arm of chromosome 3B, and three minor QTL (Qfhb.ndwp-6B, Qfhb.ndwp-2A, and Qfhb.ndwp-6A) on 6B, 2A, and 6A, respectively. The major QTL on 3B was detected in all experiments and explained 5 to 20% of the phenotypic variation, while the three minor QTL on 6B, 2A, and 6A explained 5 to 12% phenotypic variation in at least two experiments, except for Qfhb.ndwp-2A, which was only detected in the field experiment. Qfhb.ndwp-3B and Qfhb.ndwp-6B were mapped to the genomic regions containing Fhb1 and Fhb2, respectively, confirming that they originated from Sumai 3. The additive effect of the major and minor QTL may contribute to the high level of FHB resistance in ND2710. The SNP markers closely linked to the FHB resistance QTL will be useful for marker-assisted selection of FHB resistance in wheat breeding programs.
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Zhou, Wenchun, Frederic L. Kolb, Jianbin Yu, Guihua Bai, Larry K. Boze, and Leslie L. Domier. "Molecular characterization of Fusarium head blight resistance in Wangshuibai with simple sequence repeat and amplified fragment length polymorphism markers." Genome 47, no. 6 (December 1, 2004): 1137–43. http://dx.doi.org/10.1139/g04-069.
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Molecular mapping of Fusarium head blight (FHB) resistance quantitative trait loci (QTL) and marker-assisted selection of these QTL will aid in the development of resistant cultivars. Most reported FHB resistance QTL are from 'Sumai 3' and its derivatives. 'Wangshuibai' is a FHB-resistant landrace that originated from China and is not known to be related to 'Sumai 3'. A mapping population of 139 F5:6 recombinant inbred lines was developed from a cross of 'Wangshuibai' and 'Wheaton'. This population was developed to map the FHB-resistant QTL in 'Wangshuibai' and was evaluated twice for Type II FHB resistance. A total of 1196 simple sequence repeat and amplified fragment length polymorphism markers were screened on this population, and four FHB resistance QTL were detected. A major QTL near the end of 3BS explained 37.3% of the phenotypic variation. Another QTL on 3BS, located close to the centromere, explained 7.4% of the phenotypic variation. Two additional QTL on 7AL and 1BL explained 9.8% and 11.9% of the phenotypic variation, respectively. The simple sequence repeat and amplified fragment length polymorphism markers closely linked to these QTL may be useful for stacking QTL from 'Wangshuibai' and other sources to develop cultivars with transgressive FHB resistance.Key words: head scab, marker-assisted selection, molecular mapping, Triticum aestivum L., wheat.
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He, Yi, Xu Zhang, Yu Zhang, Dawood Ahmad, Lei Wu, Peng Jiang, and Hongxiang Ma. "Molecular Characterization and Expression of PFT, an FHB Resistance Gene at the Fhb1 QTL in Wheat." Phytopathology® 108, no. 6 (June 2018): 730–36. http://dx.doi.org/10.1094/phyto-11-17-0383-r.
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Fusarium head blight (FHB) is a destructive fungal disease in wheat worldwide. Efforts have been carried out to combat this disease, and the pore-forming toxin-like (PFT) gene at the quantitative trait locus (QTL) Fhb1 was isolated and found to confer resistance to FHB in Sumai 3. In this study, we characterized PFT in 348 wheat accessions. Four haplotypes of PFT were identified. The wild haplotype of PFT had higher resistance than other haplotypes and explained 13.8% of phenotypic variation in FHB resistance by association analysis. PFT was highly expressed during early flowering and increased after Fusarium graminearum treatment in Sumai 3. Analysis of the 5′ flanking sequence of PFT predicted that the cis elements of the PFT promoter were related to hormones and biological defense responses. However, PFT existed not only in the FHB-resistant accessions but also in some susceptible accessions. These results suggested that FHB resistance in a diverse range of wheat genotypes is partially conditioned by PFT. The profiling of FHB resistance and the PFT locus in this large collection of wheat germplasm may prove helpful for incorporating FHB resistance into wheat breeding programs, although more work is needed to reveal the exact role of the QTL Fhb1 in conferring resistance to fungal spread.
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Basnet, Bhoja R., Karl D. Glover, Amir M. H. Ibrahim, Yang Yen, and Shiaoman Chao. "A QTL on chromosome 2DS of ‘Sumai 3’ increases susceptibility to Fusarium head blight in wheat." Euphytica 186, no. 1 (August 4, 2011): 91–101. http://dx.doi.org/10.1007/s10681-011-0495-x.
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Wang, Rui, Jianli Chen, James A. Anderson, Junli Zhang, Weidong Zhao, Justin Wheeler, Natalie Klassen, Deven R. See, and Yanhong Dong. "Genome-Wide Association Mapping of Fusarium Head Blight Resistance in Spring Wheat Lines Developed in the Pacific Northwest and CIMMYT." Phytopathology® 107, no. 12 (December 2017): 1486–95. http://dx.doi.org/10.1094/phyto-02-17-0073-r.
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Fusarium head blight (FHB) is a destructive disease of wheat in humid and semihumid areas of the world. It has emerged in the Pacific Northwest (PNW) in recent years because of changing climate and crop rotation practices. Our objectives in the present study were to identify and characterize quantitative trait loci (QTL) associated with FHB resistance in spring wheat lines developed in the PNW and the International Maize and Wheat Improvement Center. In total, 170 spring wheat lines were evaluated in field and greenhouse trials in 2015 and 2016. Fourteen lines showing consistent resistance in multiple environments were identified. These lines are valuable resources in wheat variety improvement of FHB resistance because they have no Sumai 3 or Sumai 3-related background. The 170 lines were genotyped using a high-density Illumina 90K single-nucleotide polymorphisms (SNP) assay and 10 other non-SNP markers. A genome-wide association analysis was conducted with a mixed model (Q+K). Consistent, significant SNP associations with multiple traits were found on chromosomes 1B, 2B, 4B, 5A, 5B, and 6A. The locus on chromosome 5B for reduced deoxynivalenol content may be novel. The identified QTL are being validated in additional mapping studies and the identified resistant lines are being used in variety development for FHB resistance and facilitated by marker-assisted selection.
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Zhou, M. P., M. J. Hayden, Z. Y. Zhang, W. Z. Lu, and H. X. Ma. "Saturation and mapping of a majorFusarium head blight resistance QTL on chromosome 3BS of Sumai 3 wheat." Journal of Applied Genetics 51, no. 1 (March 2010): 19–25. http://dx.doi.org/10.1007/bf03195706.
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Kruger, Warren M., Clara Pritsch, Shiaoman Chao, and Gary J. Muehlbauer. "Functional and Comparative Bioinformatic Analysis of Expressed Genes from Wheat Spikes Infected with Fusarium graminearum." Molecular Plant-Microbe Interactions® 15, no. 5 (May 2002): 445–55. http://dx.doi.org/10.1094/mpmi.2002.15.5.445.
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Fusarium head blight, caused by the fungus Fusarium graminearum, is a major disease on wheat (Triticum aestivum L.). Expressed sequence tags (ESTs) were used to identify genes expressed during the wheat-F. graminearum interaction. We generated 4,838 ESTs from a cDNA library prepared from spikes of the partially resistant cultivar Sumai 3 infected with F. graminearum. These ESTs were composed of 2,831 singlet (single-copy transcripts) and 715 contigs (multiple-copy transcripts) for a total of 3,546 non-redundant sequences. Four sets of nonredundant sequences were identified. One set contains numerous, common biotic and abiotic stress-related genes. Many of these stress-related genes were represented by multiple ESTs, indicating that they are abundantly expressed. A second set comprised 16 nonredundant sequences from F. graminearum that may be required for pathogenicity. A subset of these fungal genes encodes proteins associated with plant cell wall degradation. A third set of 326 nonredundant sequences had no DNA or amino acid sequence similarity to almost 1 million plant and over 7 million animal sequences in dbEST (as of 22 June 2001). Thus, these 326 nonredundant sequences have only been found in our F. graminearum-infected ‘Sumai 3’ cDNA library. A fourth set of 29 nonredundant sequences was found in our F. graminearum-infected wheat and another plant-pathogen interaction cDNA library. Some of these sequences encode proteins that may act in establishing various plant-fungal interactions.
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Ma, H. X., G. H. Bai, X. Zhang, and W. Z. Lu. "Main Effects, Epistasis, and Environmental Interactions of Quantitative Trait Loci for Fusarium Head Blight Resistance in a Recombinant Inbred Population." Phytopathology® 96, no. 5 (May 2006): 534–41. http://dx.doi.org/10.1094/phyto-96-0534.
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Chinese Spring Sumai 3 chromosome 7A disomic substitution line (CS-SM3-7ADS) is highly resistant to Fusarium head blight (FHB), and an F7 population of recombinant inbred lines derived from the cross CS-SM3-7ADS × Annong 8455 was evaluated for resistance to FHB to investigate main effects, epistasis, and environmental interactions of quantitative trait loci (QTLs) for FHB resistance. A molecular linkage map consists of 501 simple sequence repeat and amplified fragment length polymorphism markers. A total of 10 QTLs were identified with significant main effects on the FHB resistance using MapQTL and QTLMapper software. Among them, CS-SM3-7ADS carries FHB-resistance alleles at five QTLs on chromosomes 2D, 3B, 4D, and 6A. One QTL on 3BS had the largest effect and explained 30.2% of the phenotypic variance. Susceptible QTLs were detected on chromosomes 1A, 1D, 4A, and 4B. A QTL for enhanced FHB resistance was not detected on chromosome 7A of CS-SM3-7ADS; therefore, the increased FHB resistance in CS-SM3-7ADS was not due to any major FHB-resistance QTL on 7A of Sumai 3, but more likely was due to removal of susceptible alleles of QTLs on 7A of Chinese Spring. QTLMapper detected nine pairs of additive-additive interactions at 17 loci that explained 26% phenotypic variance. QTL-environment interactions explained 49% of phenotypic variation, indicating that the environments significantly affected the expression of the QTLs, especially these epistasis QTLs. Adding FHB-enhancing QTLs or removal of susceptible QTLs both may significantly enhance the degree of wheat resistance to FHB in a wheat cultivar.
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del Blanco, I., R. Frohberg, R. Stack, W. Berzonsky, and S. Kianian. "Detection of QTL linked to Fusarium head blight resistance in Sumai 3-derived North Dakota bread wheat lines." Theoretical and Applied Genetics 106, no. 6 (April 2003): 1027–31. http://dx.doi.org/10.1007/s00122-002-1137-4.
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Zhuang, Yongbin, Aravind Gala, and Yang Yen. "Identification of Functional Genic Components of Major Fusarium Head Blight Resistance Quantitative Trait Loci in Wheat Cultivar Sumai 3." Molecular Plant-Microbe Interactions® 26, no. 4 (April 2013): 442–50. http://dx.doi.org/10.1094/mpmi-10-12-0235-r.
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Fusarium head blight (FHB) is a devastating disease worldwide, affecting wheat and other small grains. To identify key wheat genes involved in FHB pathogenesis, 406 FHB-related wheat expressed sequence tags functionally identified in Sumai 3 were investigated for their association with FHB-resistance quantitative trait loci (QTL) Fhb1 and Fhb_6BL in 2010 and 2011. A total of 47 candidate genes were identified by bulk analysis, near-isogenic screening and expression QTL mapping, and were finally mapped to their carrier chromosomes with Chinese Spring nulli-tetra deficiency lines. One gene, designated WFhb1_c1 (wheat Fhb1 candidate gene 1), was both functionally associated with and physically located within Fhb1 and was found to be weakly similar (E = 5e+0) to an Arabidopsis gene encoding pectin methyl esterase inhibitor. Two other genes, designated WFI_6BL1 and WFI_6BL2 (wheat-Fusarium interaction genes 6BL1 and 6BL2), were functionally associated with Fhb_6BL but physically mapped on chromosomes 7D and 5A, respectively. WFI_6BL1 was annotated as a 13- lipoxygenase gene and WFI_6BL2 might encode a PR-4-like protein. Our data suggested that i) Fhb1 seems to contribute to FHB resistance by reducing susceptibility in the first 60 h, ii) Fhb_6BL makes its contribution via the jasmonate-mediated pathways, and iii) wheat seems to activate its defense mechanism in the biotrophic phase of FHB pathogenesis.
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Comeau, A., F. Langevin, V. Caetano, S. Haber, M. Savard, H. Voldeng, G. Fedak, et al. "A different path to the summit of Fusarium Head Blight resistance in wheat: developing germplasm with a systemic approach." Plant Breeding and Seed Science 63, no. 1 (January 1, 2011): 39–48. http://dx.doi.org/10.2478/v10129-011-0014-1.
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A different path to the summit of Fusarium Head Blight resistance in wheat: developing germplasm with a systemic approach In pursuing FHB resistance in wheat, 30 years of conventional breeding efforts in Eastern Canada have brought some progress. Substantial investment and the application in recent years of marker-assisted selection have to date, however, failed to produce agronomic lines that resist FHB as well as Sumai 3. We present here an alternative path, described as the systemic approach. Rather than seeking to introgress specific putative resistance genes, it subjects target germplasm to regimes of repeated cycles of multiple, interacting (biotic and abiotic) stresses in which desirable traits - not always adequately expressed in parental lines - are identified and selected. How can such a seemingly counterintuitive process work? The systemic approach views desired resistance as arising from the interactions of complex regulation mechanisms mediating how a host responds when a pathogen attacks. These constituents of resistance should thus not always be understood simply as discrete Mendelian units. In repeated rounds of selection, the systemic approach captures those rare individuals that embody optimal interactions of traits, and advances them as founders of lines that resist FHB more effectively than if selection focused on FHB alone. In Quebec, we have chosen to select wheat populations under combined pressure from barley yellow dwarf virus (BYDV) infection and FHB. Resistance to FHB and tolerance of BYDV are quantitative traits that interact. BYD increases both the direct losses from FHB and the production of mycotoxins. Selection under virus pressure, therefore, helps identify those individuals which express FHB resistance more effectively. Moreover, the correlates of virus tolerance (physiological efficiency, generalized stress tolerance and yield) point to those plants with better root traits, ability to produce biomass and yield stability. Together with numerous secondary criteria, such selection eliminates all but a few ‘winners’ in each round. Seen from a systemic perspective, the difficulty of identifying good progeny among descendants of crosses with Sumai 3 does not surprise. Deleterious linkages, pleiotropy and epistasis will usually combine in far from optimal expressions of the assembled genetic information. The systemic approach, by contrast, identifies in repeated cycles increasingly optimized expressions of genes, allowing all potential sources of resistance to be explored. Thus resistant lines can readily be derived from the crosses of susceptible parents, an objective rarely sought in conventional, focused approaches. Moreover, wheat plants respond to the systemic approach's powerful stresses with enhanced epigenetic variation, raw material from which broader ranges of heritable traits can be selected. Germplasm that expresses a full range of attractive traits while resisting FHB as effectively as Sumai 3 can now be shown to be much more abundant than previously imagined. Perhaps this promise will entice more wheat workers to try a systemic approach.
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Chrpová, J., V. Šíp, L. Štočková, Z. Stehno, and I. Capouchová. "Evaluation of resistance to Fusarium head blight in spring wheat genotypes belonging to various Triticum species." Czech Journal of Genetics and Plant Breeding 49, No. 4 (November 26, 2013): 149–56. http://dx.doi.org/10.17221/117/2013-cjgpb.
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Response of 35 spring wheat varieties and lines (of four Triticum species) to spray inoculation with Fusarium culmorum was evaluated in field experiments over three years (2010–2012). Data on mycotoxin deoxynivalenol (DON) content were complemented by symptom scores and determination of the percentage of Fusarium damaged kernels and percent reduction of thousand grain weight and of grain weight per spike due to infection. Resistance to Fusarium head blight (FHB) determined on the basis of the five mentioned traits was variable in all the examined genotype groups and very high only in the non-adapted check variety Sumai 3. The common wheat landrace Červená perla, four T. dicoccum genotypes (May Emmer, Weisser Sommer, Tábor, and Rudico), T. spelta (Ruzyně), and the commercially grown bread wheat variety Vánek can be considered as moderately resistant to FHB. DON accumulation was significantly higher in the modern common wheat varieties than in the other Triticum species and common wheat landraces. The latter nonetheless showed similar average reductions in grain weight per spike due to infection as did current spring wheat varieties. It is particularly important that DON content was found to be low and least variable not only in Sumai 3 but also in some T. dicoccum (Rudico and Tábor) and T. spelta (Ruzyně) genotypes. It was documented that FHB-resistant emmer and spelt wheat materials have some outstanding grain-quality parameters (e.g. very high protein content) and can be progressively utilized particularly in breeding wheat for alternative use and growing in organic farming systems. It is important to make substantial progress towards developing resistance in common spring wheat, because most current varieties other than Vánek and Trappe were found to be moderately susceptible or susceptible to FHB.
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KOSOVÁ, K., J. CHRPOVÁ, J. ŠANTRŮČEK, R. HYNEK, M. KLÍMA, I. T. PRÁŠIL, and P. VÍTÁMVÁS. "The effect of Fusarium culmorum inoculation and deoxynivalenol application on proteome response in wheat cultivars Sumai 3 and SW Kadrilj." Biologia plantarum 65 (July 30, 2021): 221–36. http://dx.doi.org/10.32615/bp.2021.010.
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Niwa, Sayaka, Katashi Kubo, Janet Lewis, Rie Kikuchi, Manickavelu Alagu, and Tomohiro Ban. "Variations for Fusarium head blight resistance associated with genomic diversity in different sources of the resistant wheat cultivar ‘Sumai 3’." Breeding Science 64, no. 1 (2014): 90–96. http://dx.doi.org/10.1270/jsbbs.64.90.
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ZHOU, W.-C., F. L. KOLB, G.-H. BAI, L. L. DOMIER, and J.-B. YAO. "Effect of individual Sumai 3 chromosomes on resistance to scab spread within spikes and deoxynivalenol accumulation within kernels in wheat." Hereditas 137, no. 2 (November 2002): 81–89. http://dx.doi.org/10.1034/j.1601-5223.2002.01674.x.
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Gunnaiah, Raghavendra, and Ajjamada C. Kushalappa. "Metabolomics deciphers the host resistance mechanisms in wheat cultivar Sumai-3, against trichothecene producing and non-producing isolates of Fusarium graminearum." Plant Physiology and Biochemistry 83 (October 2014): 40–50. http://dx.doi.org/10.1016/j.plaphy.2014.07.002.
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Ren, Tianheng, Zixin Sun, Zhenglong Ren, Feiquan Tan, Peigao Luo, Zongxiang Tang, Shulan Fu, and Zhi Li. "Molecular and Cytogenetic Characterization of a Wheat-Rye 7BS.7RL Translocation Line with Resistance to Stripe Rust, Powdery Mildew, and Fusarium Head Blight." Phytopathology® 110, no. 10 (October 2020): 1713–20. http://dx.doi.org/10.1094/phyto-02-20-0061-r.
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Secale cereale is used as a source of genes for disease resistance in wheat cultivation. In this study, a homozygous translocation line (RT14-245) that originated from a cross between a commercial wheat cultivar (Mianyang 11) and a local Chinese variety of rye (Baili) was developed. Multicolor fluorescence in situ hybridization and PCR analysis demonstrated that the translocation chromosome was 7BS.7RL. Resistance analysis showed that RT14-245 was resistant to prevalent pathotypes of stripe rust and powdery mildew. RT14-245 also exhibited high resistance to Fusarium head blight, which was similar to the resistance exhibited by the wheat cultivar Sumai 3. The results indicated that RT14-245 simultaneously exhibited high levels of resistance against stripe rust, powdery mildew, and Fusarium head blight. These results indicate that chromosome arm 7RL in the translocation line RT14-245 is an excellent new resource for wheat breeding programs.
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Ribichich, Karina F., Silvia E. Lopez, and Abelardo C. Vegetti. "Histopathological Spikelet Changes Produced by Fusarium graminearum in Susceptible and Resistant Wheat Cultivars." Plant Disease 84, no. 7 (July 2000): 794–802. http://dx.doi.org/10.1094/pdis.2000.84.7.794.
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Scab is an important disease of wheat throughout the world. Fusarium graminearum is the species most frequently isolated in Argentina. Histopathological modifications observed in Pro INTA Oasis (a susceptible Argentine cultivar) and in Sumai 3 (a resistant Chinese cultivar) from the time of inoculation, at the spike emergence stage, until major disease expression (10.5 days postinoculation in the susceptible cultivar) are described. Both cultivars showed a horizontal progression of disease, from anthers to glumes, and a vertical progression, from anthers to rachis. Chlorenchyma was the most damaged tissue, with progressive chlorosis and necrosis. Walls of mesophyll, parenchyma, and epidermal cells around the lesions became thicker, particularly in the resistant cultivar. Vessels and sieve tubes were occluded, particularly the former in the susceptible cultivar and the latter in the resistant cultivar. Possible relationships between tissue changes generated during disease progression and known resistance mechanisms are discussed.
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Dong, F., S. Wang, M. Yu, Y. Sun, J. Xu, and J. Shi. "Natural occurrence of deoxynivalenol and deoxynivalenol-3-glucoside in various wheat cultivars grown in Jiangsu province, China." World Mycotoxin Journal 10, no. 3 (September 7, 2017): 285–93. http://dx.doi.org/10.3920/wmj2016.2158.
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Deoxynivalenol (DON) is a major mycotoxin found in wheat infected with Fusarium fungi. DON can be converted by plant detoxification into a form of ‘masked mycotoxin’ termed deoxynivalenol-3-glucoside (DON-3G). To recommend appropriate wheat cultivars for planting in order to reduce DON contamination in Jiangsu province, where a traditional Fusarium head blight (FHB) epidemic area is located in the lower reaches of Yangtze-Huaihe, we evaluated the capacity of various wheat cultivars to transform DON into DON-3G under field conditions. We collected and evaluated samples from 11 major wheat cultivars grown in 63 experimental stations in Jiangsu province in 2015 and 2016. All samples were contaminated with DON, with an average concentration of 2,087±112 and 2,601±126 µg/kg in 2015 and 2016, respectively. DON-3G was detected in 425 (96%) and 405 (97%) samples in 2015 and 2016, with an average concentration of 545±28 and 819±44 µg/kg, respectively. The DON-3G/DON ratio ranged from 5 to 84% (average, 30%) in 2015 and from 0 to 71% (average, 31%) in 2016. DON levels were highly correlated with DON-3G concentrations (P<0.01), and the FHB resistance of the wheat cultivars was proportional to their capacity to convert DON to DON-3G. Importantly, region, cultivar, and region × cultivar interaction all significantly affected DON and DON-3G concentrations and DON-3G/DON ratios. In general, FHB-resistant cultivars, such as Sumai 188 and Ningmai 13, had lower levels of DON and DON-3G than the others. However, additional factors, including the growing region and environmental variables, were important for wheat management when other wheat cultivars were evaluated.
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Magalhães, Iara de Araújo, and Patrícia Lustosa Brito. "Sistema Georreferenciado de apoio à avaliação da infraestrutura de cursos universitários." Avaliação: Revista da Avaliação da Educação Superior (Campinas) 27, no. 1 (January 2022): 118–36. http://dx.doi.org/10.1590/s1414-40772022000100007.
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O presente artigo tem como objetivo apresentar uma proposta de Sistema de Informações Geográficas (SIG) que dê suporte à gestão da infraestrutura universitária, atendendo em especial à demanda de dados no processo de avaliação de cursos realizado pelo INEP/MEC. O espaço gerido pela Escola Politécnica da Universidade Federal da Bahia (UFBA) foi utilizado como estudo de caso para experimentação da proposta. A pesquisa aqui apresentada foi realizada em 4 etapas: 1) revisão de literatura buscando exemplos de outros SIG utilizados para gestão de infraestrutura levantando as demandas do INEP/MEC, 2) detalhamento das demandas da universidade por meio de entrevistas com gestores e técnicos da Superintendência de Meio Ambiente e Infraestrutura da UFBA (SUMAI) e da Escola Politécnica. A partir dessas informações foram definidos quais dados espaciais, os atributos e as informações adicionais (como fotos e plantas baixas) são necessários para o sistema, 3) elaboração de método de cálculo de indicadores de qualidade da infraestrutura com base nos critérios do INEP/MEC e 4) exemplificação de produtos possíveis do sistema proposto para sua aplicação na gestão do espaço físico de uma unidade universitária ilustrando seu potencial.
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Yao, Jinbao, Hongxiang Ma, Pingping Zhang, Lijuan Ren, Xueming Yang, Guocai Yao, Peng Zhang, and Miaoping Zhou. "Inheritance of stem strength and its correlations with culm morphological traits in wheat (Triticum aestivum L.)." Canadian Journal of Plant Science 91, no. 6 (November 1, 2011): 1065–70. http://dx.doi.org/10.4141/cjps2011-033.
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Yao, J., Ma, H., Zhang, P., Ren, L., Yang, X., Yao, G., Zhang, P. and Zhou, M. 2011. Inheritance of stem strength and its correlations with culm morphological traits in wheat ( Triticum aestivum L.). Can. J. Plant Sci. 91: 1065–1070. The genetic effect of stem strength and its correlation with culm morphological traits were investigated in a 7×7 diallel cross of wheat involving seven parents (Ningmai 8, Ningmai 9, Yangmai 5, Yangmai 9, Yangmai 11, Sumai 3, and Wangshuibai) during the crop season of 2009–2010. Significant differences were observed among genotypes for stem strength. The estimates of general combining ability (GCA) pointed out that the best general combiners for stem strength were Ningmai 8 and Yangmai 9. The additive-dominance model was adequate for stem strength, and it was controlled by the over dominance type of gene action. Ningmai 8, followed by Yangmai 5, possessed maximum recessive genes, whereas Wangshuibai had maximum dominant genes. Stem strength could be controlled by three genes with low narrow sense heritability. A statistical analysis showed that stem strength is highly significantly correlated with nine culm morphological traits except for diameter of the first basal internode.
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Sharma, Pallavi, Manu P. Gangola, Chen Huang, H. Randy Kutcher, Seedhabadee Ganeshan, and Ravindra N. Chibbar. "Single Nucleotide Polymorphisms in B-Genome Specific UDP-Glucosyl Transferases Associated with Fusarium Head Blight Resistance and Reduced Deoxynivalenol Accumulation in Wheat Grain." Phytopathology® 108, no. 1 (January 2018): 124–32. http://dx.doi.org/10.1094/phyto-04-17-0159-r.
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An in vitro spike culture method was optimized to evaluate Fusarium head blight (FHB) resistance in wheat (Triticum aestivum) and used to screen a population of ethyl methane sulfonate treated spike culture-derived variants (SCDV). Of the 134 SCDV evaluated, the disease severity score of 47 of the variants was ≤30%. Single nucleotide polymorphisms (SNP) in the UDP-glucosyltransferase (UGT) genes, TaUGT-2B, TaUGT-3B, and TaUGT-EST, differed between AC Nanda (an FHB-susceptible wheat variety) and Sumai-3 (an FHB-resistant wheat cultivar). SNP at 450 and 1,558 bp from the translation initiation site in TaUGT-2B and TaUGT-3B, respectively were negatively correlated with FHB severity in the SCDV population, whereas the SNP in TaUGT-EST was not associated with FHB severity. Fusarium graminearum strain M7-07-1 induced early expression of TaUGT-2B and TaUGT-3B in FHB-resistant SCDV lines, which were associated with deoxynivalenol accumulation and reduced FHB disease progression. At 8 days after inoculation, deoxynivalenol concentration varied from 767 ppm in FHB-resistant variants to 2,576 ppm in FHB-susceptible variants. The FHB-resistant SCDV identified can be used as new sources of FHB resistance in wheat improvement programs.
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Makandar, Ragiba, Juliane S. Essig, Melissa A. Schapaugh, Harold N. Trick, and Jyoti Shah. "Genetically Engineered Resistance to Fusarium Head Blight in Wheat by Expression of Arabidopsis NPR1." Molecular Plant-Microbe Interactions® 19, no. 2 (February 2006): 123–29. http://dx.doi.org/10.1094/mpmi-19-0123.
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Fusarium head blight (FHB) is a devastating disease of wheat and barley which causes extensive losses worldwide. Monogenic, gene-for-gene resistance to FHB has not been reported. The best source of resistance to FHB is a complex, quantitative trait derived from the wheat cv. Sumai 3. Here, we show that the Arabidopsis thaliana NPR1 gene (AtNPR1), which regulates the activation of systemic acquired resistance, when expressed in the FHB-susceptible wheat cv. Bobwhite, confers a heritable, type II resistance to FHB caused by Fusarium graminearum. The heightened FHB resistance in the transgenic AtNPR1-expressing wheat is associated with the faster activation of defense response when challenged by the fungus. PR1 expression is induced rapidly to a high level in the fungus-challenged spikes of the AtNPR1-expressing wheat. Furthermore, benzothiadiazole, a functional analog of salicylic acid, induced PR1 expression faster and to a higher level in the AtNPR1-expressing wheat than in the nontransgenic plants. We suggest that FHB resistance in the AtNPR1-expressing wheat is a result of these plants being more responsive to an endogenous activator of plant defense. Our results demonstrate that NPR1 is an effective candidate for controlling FHB.
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Puri, Krishna D., and Shaobin Zhong. "The 3ADON Population of Fusarium graminearum Found in North Dakota Is More Aggressive and Produces a Higher Level of DON than the Prevalent 15ADON Population in Spring Wheat." Phytopathology® 100, no. 10 (October 2010): 1007–14. http://dx.doi.org/10.1094/phyto-12-09-0332.
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Fusarium head blight (FHB) is primarily caused by Fusarium graminearum in North America. Isolates of F. graminearum can be identified as one of three chemotypes: 3-acetyl-deoxynivalenol (3ADON), 15-acetyl-deoxynivalenol (15ADON), and nivalenol (NIV). In this study, we characterized F. graminearum isolates collected in 1980 to 2000 (old collection) and in 2008 (new collection) from North Dakota and found a 15-fold increase of 3ADON isolates in the new collection. Evaluation of randomly selected 3ADON isolates and 15ADON isolates on three spring wheat genotypes (Grandin, Steele-ND, and ND 2710) by single-floret inoculation indicated that the 3ADON population caused a higher disease severity and produced more DON at a significant level than the 15ADON population on Grandin (susceptible to FHB) and ND 2710 (with FHB resistance from Sumai 3). However, no significant differences in disease severity and DON production were observed between the two populations on Steele-ND (with moderate resistance from Triticum dicoccoides). The 3ADON isolates also exhibited a higher DON production in rice culture and produced more spores on agar media than the 15ADON isolates, suggesting a fitness advantage of the newly emerging 3ADON population over the prevalent 15ADON population. Population genetic analyses using DNA markers revealed a significant genetic differentiation between the two populations. The information obtained in this study could have an impact on development of FHB-resistant wheat cultivars and disease management.
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Kang, Zhensheng, Heinrich Buchenauer, Lili Huang, Qingmei Han, and Hongchang Zhang. "Cytological and immunocytochemical studies on responses of wheat spikes of the resistant Chinese cv. Sumai 3 and the susceptible cv. Xiaoyan 22 to infection by Fusarium graminearum." European Journal of Plant Pathology 120, no. 4 (October 24, 2007): 383–96. http://dx.doi.org/10.1007/s10658-007-9230-9.
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Ma, Zheng-Qiang, Yin-Hai Zhao, and Da-Jun Liu. "Incorporation of restoring gene of Aegilops umbellulata into wheat." Genome 34, no. 5 (October 1, 1991): 727–32. http://dx.doi.org/10.1139/g91-112.
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Six 'Chinese Spring' – Aegilops umbellulata Zhuk. addition lines (UAD, UBD, UCD, UDD, UED, and UFM) were assayed for their effects on the fertility of timopheevi cytoplasm male sterile lines (T-type). Chromosome 6U of disomic addition line UAD was found to be able to restore the fertility of T-type male sterility and 'Chinese Spring' was verified to lack restoring genes, indicating that 6U carries at least one fertility restoration gene. From about 200 plants with 42 somatic chromosomes derived from the progeny of crosses Qu Xian Early A × UAD and Sumai No. 3 A × UAD, eight self-fertile plants were selected. Their self-fertility in timopheevi cytoplasm implies that they carry the restoring gene(s) from 6U. Cytological analysis was conducted on the hybrid F1 of the selected fertile plants (040-5, 060-1, and 061-4) as female parents crossed with 'Chinese Spring'. The self-fertility segregation and the chromosome pairing of pollen mother cells of F1 fertile plants from 040-5, 060-1, and 061-4 × 'Chinese Spring' during meiosis suggested that they were heterozygous translocation lines with restoring gene(s) from 6U.Key words: Aegilops umbellulata Zhuk., restoring genes, alien gene transfer, timopheevi cytoplasmic male sterile fertility, Triticum aestivum L.
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Tamburic-Ilincic, L., D. Falk, and A. Schaafsma. "Fusarium ratings in Ontario winter wheat performance trial (OWWPT) using an index that combines Fusarium head blight symptoms and deoxynivalenol levels." Czech Journal of Genetics and Plant Breeding 47, Special Issue (October 20, 2011): S115—S122. http://dx.doi.org/10.17221/3265-cjgpb.
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Fusarium head blight (FHB) is one of the most serious diseases of wheat (Triticum aestivum L.). FHB reduces grain yield and quality, and the fungus produces mycotoxins, such as deoxynivalenol (DON). The most practical way to control FHB is through the development of resistant cultivars. In addition to exotic sources of resistance (such as cultivars Sumai 3 and Frontana), native sources of resistance are commonly used in winter wheat breeding programs in North America. In 1996, 2000, and 2004 severe epidemics of FHB cost the winter wheat industry in Ontario, Canada combined over $200 million. All wheat grown in Ontario is entered in the Ontario Winter Wheat Performance Trial (OWWPT) and tested every year for Fusarium resistance and DON level in three inoculated FHB nurseries. The objective of this study is to explain how the index that accounts for FHB symptoms and DON level jointly was developed, and how stable the performance of the cultivars grouped to susceptibility classes has been over a number of years. The index is related to Fusarium susceptibility classes (moderately resistant – MR, moderately susceptible – MS, susceptible – S and highly susceptible – HS), robust, stable, open-ended (old cultivars out, new cultivars in) and useful to farmers in making cultivars selection decisions. This information is available to growers and industry through the website www.gocereals.ca.
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Liu, Sixin, and James A. Anderson. "Targeted molecular mapping of a major wheat QTL for Fusarium head blight resistance using wheat ESTs and synteny with rice." Genome 46, no. 5 (October 1, 2003): 817–23. http://dx.doi.org/10.1139/g03-066.
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A major QTL for resistance to Fusarium head blight (FHB) in wheat, Qfhs.ndsu-3BS, has been identified and verified by several research groups. The objective of this study was to increase the marker density in this QTL region using STS (sequence-tagged site) markers developed from wheat expressed sequence tags (ESTs) near Qfhs.ndsu-3BS. Because wheat chromosome 3BS and rice chromosome 1S are syntenous, the sequences of P1-derived artificial chromosome (PAC) and (or) bacterial artificial chromosome (BAC) clones covering the sub-distal portion of rice chromosome 1S were used as queries for a BLASTn search to identify wheat ESTs most likely near Qfhs.ndsu-3BS. Sixty-eight out of 79 STS primer pairs designed from wheat ESTs amplified PCR products from the genomic DNA of Triticum aestivum 'Chinese Spring'. Twenty-eight STS markers were localized on chromosome 3BS by aneuploid analysis. Six out of the nine STS markers that could be mapped in the T. aestivum 'Sumai 3'/T. aestivum 'Stoa' population had higher R2 and LOD values for this QTL than the most significant marker reported previously. Therefore, leveraging genome sequence information available in rice for wheat genetics is an effective strategy to develop DNA markers for Qfhs.ndsu-3BS, and this strategy may have broad applications for targeted mapping of other traits in cereal crops.Key words: comparative mapping, genomics.
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Gao, Qi, Qiuhong Liao, Qingming Li, Qichang Yang, Fang Wang, and Jianming Li. "Effects of LED Red and Blue Light Component on Growth and Photosynthetic Characteristics of Coriander in Plant Factory." Horticulturae 8, no. 12 (December 8, 2022): 1165. http://dx.doi.org/10.3390/horticulturae8121165.
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Coriander is a whole-plant edible micro vegetable frequently used in the food industry. Its fresh eating features give it a flavor that is both tasty and refreshing, as well as potentially dangerous due to the bacteria (e.g., Shigella sonnei) it may contain. Artificial light-based plant factories are becoming increasingly popular due to the development of light-emitting diodes (i.e., LEDs). These plant factories employ artificial light to recreate the ideal lighting conditions for photosynthesis, ensuring plant yield and safety. Red (R) light and blue (B) light are essential for crop development and photosynthesis because R light and B light correspond to the wavelength absorption peaks of chlorophyll. However, the sensitivity of various crops to the light of varying wavelengths varies. Here, we determined the ideal R to B light ratio for cultivating coriander in plant factories by evaluating the photosynthetic characteristics of coriander (‘Sumai’) under different red–blue ratios. Specifically, we used monochrome red (R) and blue (B) light as controls and evaluated a total of seven different ratio treatments of R and B light (R, R:B = 5:1 (R5B1), R:B = 3:1 (R3B1), R:B = 1:1 (R1B1), R:B = 1:3 (R1B3), R:B = 1:5 (R1B5), B) under the background of uniform light intensity (200 ± 10 μmol m−2 s−1) and photoperiod (16-h/8-h light/dark). The results showed that the total yield of R:B = 3:1 (R3B1) was 16.11% and 30.61% higher than monochrome R and B treatments, respectively, the photosynthetic rate (Pn) and stomatal density were increased, and the nitrate content was decreased. Monochromatic light has adverse effects on crops. Monochromatic R light reduces the CO2 assimilation amount. Monochromatic blue light treatment lowers chlorophyll concentration and net photosynthetic rate.
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Li, Kailin, Dianzhen Yu, Zheng Yan, Na Liu, Yingying Fan, Cheng Wang, and Aibo Wu. "Exploration of Mycotoxin Accumulation and Transcriptomes of Different Wheat Cultivars during Fusarium graminearum Infection." Toxins 14, no. 7 (July 13, 2022): 482. http://dx.doi.org/10.3390/toxins14070482.
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Fusarium graminearum is one of the most devastating diseases of wheat worldwide, and can cause Fusarium head blight (FHB). F. graminearum infection and mycotoxin production mainly present in wheat and can be influenced by environmental factors and wheat cultivars. The objectives of this study were to examine the effect of wheat cultivars and interacting conditions of temperature and water activity (aw) on mycotoxin production by two strains of F. graminearum and investigate the response mechanisms of different wheat cultivars to F. graminearum infection. In this regard, six cultivars of wheat spikes under field conditions and three cultivars of post-harvest wheat grains under three different temperature conditions combined with five water activity (aw) conditions were used for F. graminearum infection in our studies. Liquid chromatography tandem mass spectrometry (LC–MS/MS) analysis showed significant differences in the concentration of Fusarium mycotoxins deoxynivalenol (DON) and its derivative deoxynivalenol-3-glucoside (D3G) resulting from wheat cultivars and environmental factors. Transcriptome profiles of wheat infected with F. graminearum revealed the lower expression of disease defense-factor-related genes, such as mitogen-activated protein kinases (MAPK)-encoding genes and hypersensitivity response (HR)-related genes of infected Annong 0711 grains compared with infected Sumai 3 grains. These findings demonstrated the optimal temperature and air humidity resulting in mycotoxin accumulation, which will be beneficial in determining the conditions of the relative level of risk of contamination with FHB and mycotoxins. More importantly, our transcriptome profiling illustrated differences at the molecular level between wheat cultivars with different FHB resistances, which will lay the foundation for further research on mycotoxin biosynthesis of F. graminearum and regulatory mechanisms of wheat to F. graminearum.
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Brar, Gurcharn S., Garry Hnatowich, Gary Peng, Pierre J. Hucl, and Hadley R. Kutcher. "The Effect of Fhb1 and Fhb5 Quantitative Trait Loci in Hard Red Spring Wheat Does Not Depend on Fungicide Use for Managing Fusarium Head Blight in Wheat." Plant Disease 103, no. 8 (August 2019): 1850–57. http://dx.doi.org/10.1094/pdis-09-18-1559-re.
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Fusarium head blight (FHB), caused by Fusarium graminearum, is one of the most damaging diseases that affect wheat in Canada. The disease is best managed by integrating host resistance and fungicides, mainly demethylation inhibitors. Research has shown that the effect of fungicides may be dependent on the level of resistance of the cultivar. However, whether the performance of genotypes carrying specific Sumai 3-derived major FHB quantitative trait loci is dependent on fungicide application has not been explored. In our study, the performance of near-isogenic lines (NILs; <1.0% genome/alleles from the resistance donor), carrying Fhb1 and Fhb5 in a hard red spring wheat cultivar CDC Go background compared with a moderately susceptible (MS) genotype, was evaluated with and without one application of metconazole during full flowering. Field experiments were conducted at five site-years in Saskatchewan, Canada, between 2016 and 2017. In both the individual and combined analysis (all trials), we found that the effect of NILs and metconazole in suppressing FHB symptoms and deoxynivalenol (DON) accumulation in the grain was additive. FHB severity was generally low and fungicide efficacy levels, relative to the untreated control, were increased in the MS cultivar than in the NILs carrying Fhb1 and Fhb5, which were least affected by the disease. The results confirm the importance of integrating fungicides with cultivar resistance to reduce FHB and DON, regardless of the presence of those well-characterized resistant genes.
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Mesterhazy, Akos. "Updating the Breeding Philosophy of Wheat to Fusarium Head Blight (FHB): Resistance Components, QTL Identification, and Phenotyping—A Review." Plants 9, no. 12 (December 3, 2020): 1702. http://dx.doi.org/10.3390/plants9121702.
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Fusarium head blight has posed continuous risks to wheat production worldwide due to its effects on yield, and the fungus provides additional risks with production of toxins. Plant resistance is thought to be the most powerful method. The host plant resistance is complex, Types I–V were reported. From the time of spraying inoculation (Type I), all resistance types can be identified and used to determine the total resistance. Type II resistance (at point inoculation) describes the spread of head blight from the ovary to the other parts of the head. Therefore, it cannot solve the resistance problem alone. Type II QTL (quantitative trait locus) Fhb1 on 3BS from Sumai 3 descendant CM82036 secures about the same resistance level as Type I QTL does on 5AS and 5ASc in terms of visual symptoms, FDK (Fusarium damaged kernel), and deoxynivalenol response. Recently, increasing evidence supports the association of deoxynivalenol (DON) content and low kernel infection with FHB (Fusarium head blight) resistance (Types III and IV), as QTL for individual resistance types has been identified. In plant breeding practice, the role of visual selection remains vital, but the higher correlations for FDK/DON make it possible to select low-DON genotypes via FDK value. For phenotyping, the use of more independent inocula (isolates or mixtures) makes resistance evaluation more reliable. The large heterogeneity of the mapping populations is a serious source of underestimating genetic effects. Therefore, the increasing of homogeneity is a necessity. As no wheat varieties exist with full resistance to FHB, crops must be supported by proper agronomy and fungicide use.
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Somers, Daryl J., George Fedak, John Clarke, and Wenguang Cao. "Mapping of FHB resistance QTLs in tetraploid wheat." Genome 49, no. 12 (December 2006): 1586–93. http://dx.doi.org/10.1139/g06-127.
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Triticum turgidum L var. durum is known to be particularly susceptible to infection by Fusarium graminearum, the causal agent for Fusarium head blight (FHB), which results in severe yield losses and grain contaminated with mycotoxins. This research was aimed at identifying FHB resistance in tetraploid wheat and mapping the location of FHB resistance genes. A tetraploid cross of durum wheat (‘Strongfield’) × Triticum carthlicum (‘Blackbird’) was used to generate a doubled-haploid (DH) population. This population was evaluated for type II resistance to F. graminearum in replicated greenhouse trials, in which heads were innoculated and the percent of infected spikelets was determined 21 days later. The population was also genotyped with microsatellite markers to construct a map of 424 loci, covering 2 052 cM. The FHB reaction and genotypic data were used to identify FHB resistance quantitative trait loci (QTLs). It was determined that 2 intervals on chromosomes 2BL and 6BS controlled FHB resistance in this tetraploid cross. The FHB resistance allele on chromosome 2BL (r2 = 0.26, logarithm of odds (LOD) = 8.5) was derived from ‘Strongfield’, and the FHB resistance allele on chromosome 6BS (r2 = 0.23, LOD = 6.6) was derived from ‘Blackbird’. Two other loci, on chromosomes 5AS and 2AL, were shown to regulate FHB infection and to have an epistatic effect on the FHB resistance QTL on chromosome 6BS. Further, the FHB resistance QTL peak on chromosome 6BS was clearly coincident with the known FHB resistance gene Fhb2, derived from Sumai 3. The results show that FHB resistance can be expressed in durum wheat, and that T. carthlicum and Triticum aestivum likely share a common FHB resistance gene on chromosome 6BS.
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Miedaner, T., C. von der Ohe, V. Korzun, and E. Ebmeyer. "Introgression breeding - Effects and side effects of marker-based introduction of two non-adapted QTL for Fusarium head blight resistance into elite wheat." Plant Breeding and Seed Science 63, no. 1 (January 1, 2011): 129–36. http://dx.doi.org/10.2478/v10129-011-0041-y.
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Introgression breeding - Effects and side effects of marker-based introduction of two non-adaptedQTLfor Fusarium head blight resistance into elite wheatFusarium head blight resistance (FHB) can be achieved by using improved adapted varieties as crossing partners or by a marker-assisted introgression of mapped QTL from non-adapted sources. In this long-term studyFhb1on chromosome 3BS andQfhs.ifa-5Alocated on chromosome 5A were introgressed into European elite spring and winter wheat to test effects on FHB resistance and side effects on agronomic performance andF. graminearumisolates and mixtures. The introgression of the QTLFhb1andQfhs.ifa-5Afrom the Sumai 3-descendant CM82036 could be performed in the shortest possible way by marker-assisted backcrossing. They were both validated in European elite wheat background. Effects on FHB resistance were, on average, only about half of the effect in the original mapping populations. In the best phenotypically and marker-selected BC0line of spring wheat FHB was reduced from 40 to 4.3% of disease symptoms by introgressing both QTL, in the best BC3line of winter wheat the reduction was 28 and 37% for the moderately resistant and highly susceptible recurrent parent, respectively. Introgression of both QTL simultaneously did not result in significantly higher FHB resistance than introgression of only one of both QTL. Small significant negative effects on grain yield were detected in the Anthus but not in the Opus BC3F2:5backcross population when both QTL were introgressed. Backcrossing with onlyQfhs.ifa-5Adid not reduce grain yield significantly. Differences in heading date, plant height and quality traits were in all cases small although often significant. Selection of lines with improved resistance level and similar high yield level like the recurrent parent was feasible. Stability of FHB resistance mediated by both QTL was stable across 22Fusariumisolates from Europe and Canada and six binary mixtures. Competition effects between isolates in mixtures were obvious but could not be attributed to the resistance of the host. In conclusion, marker-based backcrossing is a feasible option for introgressingFhb1orQfhs.ifa-5AQTL into the high-yielding, quality-oriented European wheat gene pool.
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Yu, J. B., G. H. Bai, W. C. Zhou, Y. H. Dong, and F. L. Kolb. "Quantitative Trait Loci for Fusarium Head Blight Resistance in a Recombinant Inbred Population of Wangshuibai/Wheaton." Phytopathology® 98, no. 1 (January 2008): 87–94. http://dx.doi.org/10.1094/phyto-98-1-0087.
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Use of diverse sources of Fusarium head blight (FHB)-resistant germplasm in breeding may significantly improve wheat resistance to FHB. Wangshuibai is an FHB-resistant Chinese landrace unrelated to cv. Sumai 3, the most commonly used FHB-resistant source. In all, 139 F6 recombinant inbred lines were developed from a cross between Wangshuibai and an FHB-susceptible cultivar, Wheaton, to map quantitative trait loci (QTL) for wheat resistance to initial infection (type I resistance), spread of FHB symptoms within a spike (type II resistance), and deoxynivalenol (DON) accumulation (type III resistance) in infected grain. The experiments were conducted in a greenhouse at Manhattan, KS from 2003 to 2005. More than 1,300 simple-sequence repeat and amplified fragment length polymorphism markers were analyzed in this population. Five QTL for type I resistance were detected on chromosomes 3AS, 3BS, 4B, 5AS, and 5DL after spray inoculation; seven QTL for type II resistance were identified on chromosomes 1A, 3BS, 3DL, 5AS, 5DL, and 7AL after point inoculation; and seven QTL for type III resistance were detected on chromosomes 1A, 1BL, 3BS, 5AS, 5DL, and 7AL with the data from both inoculation methods. These QTL jointly explained up to 31.7, 64, and 52.8% of the phenotypic variation for the three types of FHB resistance, respectively. The narrow-sense heritabilities were low for type I resistance (0.37 to 0.41) but moderately high for type II resistance (0.45 to 0.61) and type III resistance (0.44 to 0.67). The QTL on the distal end of 3BS, 5AS, and 5DL contributed to all three types of resistance. Two QTL, on 7AL and 1A, as well as one QTL near the centromere of 3BS (3BSc), showed effects on both type II and type III resistance. Selection for type II resistance may simultaneously improve type I and type III resistance as well. The QTL for FHB resistance identified in Wangshuibai have potential to be used to pyramid FHB-resistance QTL from different sources.
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Izzati, Rahmi, and Erda Fitriani. "Pengetahuan Suami Mengenai Suami Siaga." Culture & Society: Journal Of Anthropological Research 3, no. 1 (September 29, 2021): 14–24. http://dx.doi.org/10.24036/csjar.v3i1.86.
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Artikel ini didasari oleh tingginya angka kematian ibu pada saat melahirkan, dan disini dituntut adanya pengetahuan suami terhadap Suami Siaga di Nagari Pakan Rabaa, Kecamatan Koto Parik Gadang Diateh, Kabupaten Solok Selatan. Penelitian ini bertujuan untuk mendeskripsikan dan menjelaskan pengetahuan suami mengenai Suami Siaga. Penelitian ini dilakukan dengan pendekatan kualitatif dengan jenis penelitian studi Etnosains. Teknik pemilihan informan dilakukan dengan cara purposive sampling (sampel bertujuan) dengan jumlah informan sebanyak 29 orang. Dalam pengumpulan data dilakukan dengan cara observasi, wawancara dan studi dokumentasi dengan teknik analisis data dari Spradley. Data dianalisis dengan teori Etnosains yang dikemukan oleh James Spradley. Berdasarkan hasil penelitian diperoleh bahwa pengetahuan suami tentang Suami Siaga diperoleh dari informasi keluarga, teman, dan internet. Pengetahuan mengenai suami siaga terdiri atas: 1). pengetahuan suami mengenai penyelamatan ibu hamil melalui pertolongan pertama, 2). Pengetahuan suami mengenai tanda-tanda akan melahirkan ditandai oleh pecah air ketubanm 3). Pengetahuan suami mengenai bahaya melahirkan terlalu tua dan terlalu muda, 4). Pengetahuan suami dalam perawatan kehamilan, yang meliputi gizi ibu hamil dan pemeriksaan kehamilan, 5). Pengetahuan suami mengenai tanda-tanda bahaya dari kehamilan.
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Browne, R. A., J. P. Murphy, B. M. Cooke, D. Devaney, E. J. Walsh, C. A. Griffey, J. A. Hancock, et al. "Evaluation of Components of Fusarium Head Blight Resistance in Soft Red Winter Wheat Germ Plasm Using a Detached Leaf Assay." Plant Disease 89, no. 4 (April 2005): 404–11. http://dx.doi.org/10.1094/pd-89-0404.
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A large environmental influence on phenotypic estimates of disease resistance and the complex polygenic nature of Fusarium head blight (FHB) resistance in wheat (Triticum aestivum) are impediments to developing resistant cultivars. The objective of this research was to investigate the utility of a detached leaf assay, inoculated using inoculum from isolates of Microdochium nivale var. majus, to identify components of FHB resistance among 30 entries of U.S. soft red winter wheat in the 2002 Uniform Southern FHB Nursery (USFHBN). Whole plant FHB resistance of the USFHBN entries was evaluated in replicated, mist-irrigated field trials at 10 locations in eight states during the 2001-2002 season. Incubation period (days from inoculation to the first appearance of a dull gray-green water-soaked lesion) was the only detached leaf variable significantly correlated across all FHB resistance parameters accounting for 45% of the variation in FHB incidence, 27% of FHB severity, 30% of Fusarium damaged kernels, and 26% of the variation in grain deoxynivalenol (DON) concentration. The results for incubation period contrasted with previous studies of moderately resistant European cultivars, in that longer incubation period was correlated with greater FHB susceptibility, but agreed with previous findings for the Chinese cultivar Sumai 3 and CIMMYT germ plasm containing diverse sources of FHB resistance. The results support the view that the detached leaf assay method has potential for use to distinguish between specific sources of FHB resistance when combined with data on FHB reaction and pedigree information. For example, entry 28, a di-haploid line from the cross between the moderately resistant U.S. cultivar Roane and the resistant Chinese line W14, exhibited detached leaf parameters that suggested a combination of both sources of FHB resistance. The USFHBN represents the combination of adapted and exotic germ plasm, but four moderately resistant U.S. commercial cultivars (Roane, McCormick, NC-Neuse, and Pat) had long incubation and latent periods and short lesion lengths in the detached leaf assay as observed in moderately FHB resistant European cultivars. The dichotomy in the relationship between incubation period and FHB resistance indicates that this may need to be considered to effectively combine exotic and existing/adapted sources of FHB resistance.
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Astuti, Eny. "KOMPARASI KEPUASAN SEKSUAL ANTARA PEMAKAI AKDR DAN SUNTIK 3 BULAN." Jurnal Keperawatan 9, no. 1 (August 26, 2020): 45–51. http://dx.doi.org/10.47560/kep.v9i1.209.
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Banyaknya masyarakat yang mengeluh tentang efek samping dari AKDR menyebabkan pasangan suami-istri (pasutri) bisa mengalami masalah dalam memenuhi kebutuhan seksualitasnya sehingga dapat menganggu kenyamanan dan aktifitas rutin yang biasa dilakukan. Dengan adanya efek yang dirasakan oleh pasangan suami-istri (pasutri), mereka lebih banyak memilih jenis kontrasepsi lain yang dianggap lebih aman dan tidak menimbulkan efek terhadap kepuasan seksual yaitu menggunakan KB suntik 3 bulan. Tujuan dalam penelitian ini ialah mengetahui perbedaan antara pemakaian AKDR dan suntik 3 bulan terhadap kepuasan seksual di BPS Listiyani. Desain penelitian ini menggunakan studi komparatif, sampel yang digunakan dalam penelitian ini ialah Suami Pasangan Usia Subur (PUS) yang memakai AKDR di sebanyak 14 responden dan yang memakai suntik 3 bulan sebanyak 14 responden. Dalam pengumpulan data, peneliti menggunakan metode pengisian kuisioner tertutup dan kemudian di analisis menggunakan uji Chi-square Test dengan perangkat lunak SPSS for windows 16. Hasil analisis data menunjukkan data didapatkan nilai X2 hitung > X2 tabel maka Ho ditolak. Kesimpulan dari penelitian ini ialah ada perbedaan antara pemakaian AKDR dan Suntik 3 bulan terhadap kepuasan seksual di BPS Listyani. Sehingga penulis menyarankan untuk dapat memilih alat kontrasepsi yang sesuai dan nyaman bagi suami-istri.
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Prastuti, Endang, and Yulia Ratri Nurhayati. "Empati Dan Religiusitas Sebagai Prediktor Agresivitas Suami Pada Pasangan: Studi Pada Jamaah Pengajian Nurussalam Kecamatan Semen Kabupaten Kediri." Jurnal Ilmiah Psikologi Terapan 8, no. 2 (September 30, 2020): 200. http://dx.doi.org/10.22219/jipt.v8i2.12730.
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AbstrakObjektif: Tujuan penelitian ini adalah untuk mengetahui pengaruh; (1) empati terhadap agresivitas suami Jamaah Pengajian Nurussalam Kediri; (2) religiusitas terhadap agresivitas suami Jamaah Pengajian Nurussalam Kediri; (3) empati dan religiusitas terhadap agresivitas suami pada Jamaah Pengajian Nurussalam Kediri.Metode: Penelitian ini menggunakan jenis penelitian kuantitatif korelasional dengan metode non probability sampling. Teknik pengambilan sampel menggunakan sampel jenuh dengan jumlah subjek 48 orang. Data analisis menggunakan teknik analisis regresi linier berganda.Temuan: Hasil penelitian menunjukkan bahwa; (1) sebagian besar empati suami pada Jamaah Pengajian Nurussalam Semen Kediri tergolong tinggi; (2) sebagian besar religiusitas suami pada Jamaah Pengajian Nurussalam Kediri tergolong tinggi; (3) sebagian besar agresivitas suami pada Jamaah Pengajian Nurussalam Kediri tergolong rendah; (4) ada pengaruh empati terhadap perilaku agresivitas suami pada Jamaah Pengajian Nurussalam Kediri; (5) ada pengaruh religiusitas terhadap perilaku agresivitas suami pada Jamaah Pengajian Nurussalam Kediri; (6) ada pengaruh empati dan religiusitas terhadap perilaku agresivitas suami pada Jamaah Pengajian Nurussalam Kediri.Kesimpulan: Hipotesis penelitian diterima, artinya terdapat pengaruh empati dan religiusitas terhadap perilaku agresi suami pada Jamaah Pengajjian Nurussalam Kediri.