Relevant bibliographies by topics / Fruit genetics

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Fruit genetics'

Author: Grafiati
Published: 4 June 2021
Last updated: 10 February 2022

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Journal articles on the topic "Fruit genetics"

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Lippman, Zachary, and Steven D. Tanksley. "Dissecting the Genetic Pathway to Extreme Fruit Size in Tomato Using a Cross Between the Small-Fruited Wild Species Lycopersicon pimpinellifolium and L. esculentum var. Giant Heirloom." Genetics 158, no. 1 (May 1, 2001): 413–22. http://dx.doi.org/10.1093/genetics/158.1.413.

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Abstract In an effort to determine the genetic basis of exceptionally large tomato fruits, QTL analysis was performed on a population derived from a cross between the wild species Lycopersicon pimpinellifolium (average fruit weight, 1 g) and the L. esculentum cultivar var. Giant Heirloom, which bears fruit in excess of 1000 g. QTL analysis revealed that the majority (67%) of phenotypic variation in fruit size could be attributed to six major loci localized on chromosomes 1-3 and 11. None of the QTL map to novel regions of the genome—all have been reported in previous studies involving moderately sized tomatoes. This result suggests that no major QTL beyond those already reported were involved in the evolution of extremely large fruit. However, this is the first time that all six QTL have emerged in a single population, suggesting that exceptionally large-fruited varieties, such as Giant Heirloom, are the result of a novel combination of preexisting QTL alleles. One of the detected QTL, fw2.2, has been cloned and exerts its effect on fruit size through global control of cell division early in carpel/fruit development. However, the most significant QTL detected in this study (fw11.3, lcn11.1) maps to the bottom of chromosome 11 and seems to exert its effect on fruit size through control of carpel/locule number. A second major locus, also affecting carpel number (and hence fruit size), was mapped to chromosome 2 (fw2.1, lcn2.1). We propose that these two carpel number QTL correspond to the loci described by early classical geneticists as fasciated (f) and locule number (lc), respectively.
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Golabadi, Maryam, Pooran Golkar, and Abdolreza Eghtedary. "Combining ability analysis of fruit yield and morphological traits in greenhouse cucumber (Cucumis sativusL.)." Canadian Journal of Plant Science 95, no. 2 (March 2015): 377–85. http://dx.doi.org/10.4141/cjps2013-387.

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Golabadi, M., Golkar, P. and Eghtedary, A.-R. 2015. Combining ability analysis of fruit yield and morphological traits in greenhouse cucumber (Cucumis sativus L.). Can. J. Plant Sci. 95: 377–385. Knowledge about the genetic control of the different quantitative characters related to fruit yield and its components is still insufficient in greenhouse cucumbers. This information is useful in planning breeding programs in this economically important crop. In this study, the genetics of morphological traits and fruit yield was investigated using a 9×9 full diallel population of cucumbers for the greenhouse market. Data were collected on internode length, leaf length, leaf width, fruit length, fruit diameter, number of fruits per plant, yield per fruit and yield per plant. Variance components showed that both the additive and the dominant gene effects played significant roles in the genetic control of the traits studied. Genetic control of internode length, leaf width and number of fruits per plant was accomplished by additive effects. The significant mean squares of reciprocal crosses for all of the studied traits suggested that maternal inheritance also played an important role in the inheritance of these traits. Significant general combining ability for fruit yield revealed that both selection and hybridization methods would lead to desirable genetic improvements in cucumber through accumulation of desirable alleles from parents in the target genotype, but that hybridization would be preferred.
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Khanom, MSR, MHK Khan, and L. Hassan. "Variability, Heritability and Genetic Advance for Yield and Yield Contributing Characters in Tomato (Lycopersicon esculentum Mill.)." Progressive Agriculture 19, no. 1 (November 12, 2013): 1–5. http://dx.doi.org/10.3329/pa.v19i1.16982.

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The experiment was conducted during rabi season, 2003-2004 at the Field Laboratory of the Department of Genetics and Plant Breeding, Bangladesh Agricultural University, Mymensingh. Genotypic variability, heritability and genetic advance for yield and yield contributing characters were studied on 55 tomato genotypes. Data were recorded on number of primary branches per plant, days to first flowering, plant height, number of bunches per plant, number of fruits per plant, individual fruit weight, number of seeds per fruit, dry matter content of fruits, pH level of fruit juice and yield per plant. Very little differences were observed between genotypic coefficient of variation and phenotypic coefficient of variation for all the characters except dry matter content and yield per plant indicating that they were less influenced to environmental factors for their phenotypic expression. High heritability estimates coupled with high genetic advance in percentage of mean were obtained for number of primary branches per plant, number of days to first flowering, plant height, number of bunches per plant, number of fruits per plant, individual fruit weight and number of seeds per fruit indicating wide scope for improvement through selection of these traits.DOI: http://dx.doi.org/10.3329/pa.v19i1.16982 Progress. Agric. 19(1): 1 - 5, 2008
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Wangler, Michael F., Shinya Yamamoto, and Hugo J. Bellen. "Fruit Flies in Biomedical Research." Genetics 199, no. 3 (January 26, 2015): 639–53. http://dx.doi.org/10.1534/genetics.114.171785.

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Callaway, Ewen. "Genetics: Eau de fruit fly." Science News 173, no. 10 (September 30, 2009): 157. http://dx.doi.org/10.1002/scin.2008.5591731014.

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Rodriguez Castillo, Nohra Cecilia, Xingbo Wu, María Isabel Chacón, Luz Marina Melgarejo, and Matthew Wohlgemuth Blair. "Genetic Diversity of Purple Passion Fruit, Passiflora edulis f. edulis, Based on Single-Nucleotide Polymorphism Markers Discovered through Genotyping by Sequencing." Diversity 13, no. 4 (March 27, 2021): 144. http://dx.doi.org/10.3390/d13040144.

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Orphan crops, which include many of the tropical fruit species used in the juice industry, lack genomic resources and breeding efforts. Typical of this dilemma is the lack of commercial cultivars of purple passion fruit, Passiflora edulis f. edulis, and of information on the genetic resources of its substantial semiwild gene pool. In this study, we develop single-nucleotide polymorphism (SNP) markers for the species and show that the genetic diversity of this fruit crop has been reduced because of selection for cultivated genotypes compared to the semiwild landraces in its center of diversity. A specific objective of the present study was to determine the genetic diversity of cultivars, genebank accession, and landraces through genotyping by sequencing (GBS) and to conduct molecular evaluation of a broad collection for the species P. edulis from a source country, Colombia. We included control genotypes of yellow passion fruit, P. edulis f. flavicarpa. The goal was to evaluate differences between fruit types and compare landraces and genebank accessions from in situ accessions collected from farmers. In total, 3820 SNPs were identified as informative for this diversity study. However, the majority distinguished yellow and purple passion fruit, with 966 SNPs useful in purple passion fruits alone. In the population structure analysis, purple passion fruits were very distinct from the yellow ones. The results for purple passion fruits alone showed reduced diversity for the commercial cultivars while highlighting the higher diversity found among landraces from wild or semi-wild conditions. These landraces had higher heterozygosity, polymorphism, and overall genetic diversity. The implications for genetics and breeding as well as evolution and ecology of purple passion fruits based on the extant landrace diversity are discussed with consideration of manual or pollinator-assisted hybridization of this species.
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Cohen, Eliahou, Yavin Shalom, and Ida Rosenberger. "Postharvest Ethanol Buildup and Off-flavor in `Murcott' Tangerine Fruits." Journal of the American Society for Horticultural Science 115, no. 5 (September 1990): 775–78. http://dx.doi.org/10.21273/jashs.115.5.775.

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Britex and Zivdar, water-based polyethylene waxes, were applied in commercial and experimental formulations as spray coating, a single dip, or double dips on `Murcott' tangerine (Citrus reticulate Blanco) fruits. Postharvest waxing of `Murcott' tangerine reduced weight loss but affected the sensory characteristics of the fruit. Charges in fruit weight loss and juice composition occurred in the waxed fruits after 4 weeks of storage at 5C plus 1 week of simulated retail handling at 17C. Changes in internal fruit atmosphere were related to fruit flavor quality.
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Pavel, E. W., and T. M. DeJong. "Source- and Sink-limited Growth Periods of Developing Peach Fruits Indicated by Relative Growth Rate Analysis." Journal of the American Society for Horticultural Science 118, no. 6 (November 1993): 820–24. http://dx.doi.org/10.21273/jashs.118.6.820.

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Peach [Prunus persica (L.) Batsch] fruit thinning was used to reduce the competition for assimilates among peach fruits and to identify periods of source- and sink-limited growth during development. Individual fruit size, based on diameter or calculated dry matter accumulation, increased in trees with lower crop loads compared to fruits of unthinned trees in three peach cultivars. Relative growth rate analysis indicated that peach fruit growth was apparently limited by the assimilate supply (source-limited) or by its genetic growth potential (sink-limited) during specific growth periods. In stage I and at the beginning of stage III of the double-sigmoid growth curve, periods of source-limited growth occurred in the later-maturing cultivars Flamecrest and Cal Red. Peach fruit growth was apparently sink-limited during stage II of the growth curve when fruit relative growth rates were similar for the thinning treatments. Fruit growth in `Spring Lady', an early maturing cultivar, appeared to be primarily source-limited during the season. Although total fruit dry matter production was reduced by thinning, individual fruit dry weight on thinned trees was higher than that on trees with a heavy crop load. This typical thinning response was apparently caused by the differences in the amount of time that fruits grew under sink-vs. source-limited conditions with different crop loads. Final crop yield depended on fruit count per tree and on the available assimilate supply, and was affected by the individual fruit growth potential.
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Lang, Gregory A., and Robert G. Danka. "Honey-bee-mediated Cross- versus Self-pollination of `Sharpblue' Blueberry Increases Fruit Size and Hastens Ripening." Journal of the American Society for Horticultural Science 116, no. 5 (September 1991): 770–73. http://dx.doi.org/10.21273/jashs.116.5.770.

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To study self- and cross-pollination effects on fruit development in southern highbush (mainly Vaccinium corymbosum L.) blueberries, `Sharpblue' plants were caged with honey bees (Apis mellifera L.) and other `Sharpblue' or `Gulfcoast' plants at anthesis. Ratios of pollinizer: fruiting flowers ranged from 2.1 to 4.5. Cross-pollination increased fruit size by ≈14% and seed count by 27% but did not influence fruit set. Overall, seed count decreased by 58% during the 30 days of harvest, but this did not directly affect fruit size. Seed count appeared to influence earliness of ripening as much as it influenced fruit size. Cross-pollination increased the harvest percentage of early-ripening fruits by ≈140% and of premium market fruits (those ≥ 0.75 g) by 13% and decreased the percentage of small fruits by 66%. Consequently, a 43% increase in premium early market crop value (nearly $5000/ha) resulted from optimizing `Sharpblue' cross-pollination.
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Mladenovic, Emina, Janos Berenji, Ksenija Hiel, Marija Kraljevic-Balalic, Vladislav Ognjanov, Mirjana Ljubojevic, and Jelena Cukanovic. "Inheritance of warty fruit texture and fruit color in bottle gourd [Lagenaria siceraria (Molina) Standl.]." Genetika 45, no. 2 (2013): 427–32. http://dx.doi.org/10.2298/gensr1302427m.

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Bottle gourd [Lagenaria siceraria (Molina) Standl.] is one of the most interesting species in the plant kingdom, due to the diversity of fruit shapes, sizes and ways of use. Warty genotypes are rare compared to non warty genotypes. Considering unusual external appearance of warty fruits, we focused our research on the investigation of its inheritance patterns. By crossing different bottle gourd phenotypes, we studied the mode of inheritance and identified and verified genes responsible for the fruit skin color and warty phenotype segregation. Two parental lines, LAG 70 (with warty fruit of light green color) and LAG 71 (smooth fruit, variegated), F1, F2 and backcrosses populations along with both parents were evaluated. Genetic analysis indicated that warty fruit type is a result of monogenic inheritance, whereby the warty fruit type is dominant (Wt) trait over to the non-warty fruit type (wt). The mode of inheritance of fruit color was controlled by recessive epistasis, with a ratio of 9 variegated (A-, B-), 3 dark green colored (aaB-) and 4 light green colored (aabb) fruits in the F2 generation.
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Dissertations / Theses on the topic "Fruit genetics"

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Muda, Pauziah. "Cell wall degradation during mango fruit ripening." Thesis, University of Nottingham, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316943.

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Kölling, Nils. "Quantitative genetics of gene expression during fruit fly development." Thesis, University of Cambridge, 2016. https://www.repository.cam.ac.uk/handle/1810/256090.

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Over the last ten years, genome-wide association studies (GWAS) have been used to identify genetic variants associated with many diseases as well as quantitative phenotypes, by exploiting naturally occurring genetic variation in large cohorts of individuals. More recently, the GWAS approach has also been applied to highthroughput RNA sequencing (RNA-seq) data in order to find loci associated with different levels of gene expression, called expression quantitative trait loci (eQTL). Because of the large amount of data that is required for such high-resolution eQTL studies, most of them have so far been carried out in humans, where the cost of data collection could be justified by a possible future impact in human health. However, due to the rapidly falling price of high-throughput sequencing it is now also becoming feasible to perform high-resolution eQTL studies in higher model organisms. This enables the study of gene regulation in biological contexts that have so far been beyond our reach for practical or ethical reasons, such as early embryonic development. Taking advantage of these new possibilities, we performed a high-resolution eQTL study on 80 inbred fruit fly lines from the Drosophila Genetic Reference Panel, which represent naturally occurring genetic variation in a wild population of Drosophila melanogaster. Using a 3′ Tag RNA-sequencing protocol we were able to estimate the level of expression both of genes as well as of different 3′ isoforms of the same gene. We estimated these expression levels for each line at three different stages of embryonic development, allowing us to not only improve our understanding of D. melanogaster gene regulation in general, but also investigate how gene regulation changes during development. In this thesis, I describe the processing of 3′ Tag-Seq data into both 3′ isoform expression levels and overall gene expression levels. Using these expression levels I call proximal eQTLs both common and specific to a single developmental stage with a multivariate linear mixed model approach while accounting for various confounding factors. I then investigate the properties of these eQTLs, such as their location or the gene categories enriched or depleted in eQTLs. Finally, I extend the proximal eQTL calling approach to distal variants to find gene regulatory mechanisms acting in trans. Taken together, this thesis describes the design, challenges and results of performing a multivariate eQTL study in a higher model organism and provides new insights into gene regulation in D. melanogaster during embryonic development.
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Mhelembe, Khethani Give. "Molecular characterisation of ARC pome fruit collections in South Africa." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96716.

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Thesis (MSc)--Stellenbosch University, 2015.
ENGLISH ABSTRACT: Apple (Malus pumila Mill.) and pear (Pyrus communis L.), commonly known as pome fruits, are important deciduous fruit crops in South Africa. The challenges of climate change, disease incidence, distant markets and fluctuating consumer preferences necessitate new cultivars. The Agricultural Research Council (ARC) Infruitec-Nietvoorbij conducts a breeding programme aimed at developing new cultivars that are well adapted, resistant to pests and diseases and good storage potential. A recent review of the pome fruit gene banks, the breeders’ raw material, revealed misidentification and poor characterisation limitating the efficiency of its utilisation. To address these problems, the current study used microsatellite markers to investigate the trueness to type of accessions in the ARC gene banks. In addition, accessions of apple identified as true to type, were genotyped for the ACS1 gene involved with ethylene production and fruit ripening. Two sets of 12 microsatellite markers recommended by a European working group on Pyrus/Malus, one for apple and one for pear, were utilised to fingerprint 540 apple and 197 pear accessions. Eleven and eight of 12 markers, were used respectively to successfully discriminate across the apple and pear accessions, with the exception of clones and sports of particular cultivars. Where possible, fingerprints were compared with those of their reported parents. The use of recommended markers facilitated the comparison of ARC pear accessions with those of the collection in Brogdale (UK). Trueness to type of accessions were established and misidentified accessions were also detected. A similar comparison will be conducted for apple when the Brogdale apple accessions fingerprints become available. Several accessions were found to be false, 78 apple and 22 pear, and removal from the collection was recommended. For ACS1 genotyping of 292 apple accessions, customised fluorescently labelled ACS1-Pr were used rather than the published ACS1-5 primers. Of the 292 apple accessions, 29 were homozygous for the b allele associated with low ethylene and good storage potential. Novel size variation in one allele of the ACS1 gene, was detected in some Malus species and ornamental hybrids. Successful amplification in a multiplex reaction was achieved and proves to be a cost effective method for simultaneous molecular fingerprinting and ACS1 genotyping. True to type material will facilitate confident use of genetic resources in the breeding programmes, and the ACS1 genotypes will identify candidate parents for developing good storage performing cultivars for distant markets.
AFRIKAANSE OPSOMMING: Summary not available
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Ruklisa, Dace. "Large scale genomic association studies in fruit fly and human." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610178.

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Sonneveld, Tineke. "The molecular genetics of self-incompatibility in sweet cherry (Prunus avium)." Thesis, University of Nottingham, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.268519.

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Mollel, Margaret Huruma Naftali. "Towards a novel fruit crop : Micropropagation and genetic transformation of the indigenous fruit tree marula, Sclerocarya birrea subsp.caffra." Thesis, University of Limpopo ( Turfloop campus), 2005. http://hdl.handle.net/10386/1302.

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Thesis ( PhD. (Biotechnology )) --University of Limpopo, 2005
The marula tree (Sclerocarya birrea subsp. caffra), an indigenous, multipurpose, drought tolerant tree of Africa harbors great economic potential. Acceptance of marula-derived products internationally will directly increase the demand for marula resource. Rapid multiplication of marula trees of superior quality forms the basis of sustainable export growth. In vitro propagation and genetic improvement offer the opportunity for accelerated multiplication of selected tree material as well as to dramatically increase production, quality and efficiencies. The objectives of the study were therefore to develop a protocol for in vitro multiplication of marula and to determine the feasibility of Agrobacterium-mediated transformation of the marula tree. Nodal sections with axillary bud (s) were cultured on Murashige and Skoog (MS) medium supplemented with 4.8μM BA and 2.4μM KN and 0.1% polyvinylpyrrolidone (PVP) to obtain on average 2.5 microshoots per responding explant. The proliferated microshoots were elongated on MS medium supplemented with 1.2μM BA and 1.0μM KN. Elongated microshoots were rooted in MS medium at half salts strength supplemented with 10μM IBA and 0.3% activated charcoal (AC). On average 82% of the shoots rooted. Survival of acclimatized plantlets was 90%. RAPD analysis confirmed intraclonal genetic stability between parent plants and their clones within the limits of the technique.Nodal sections cocultivated with Agrobacterium tumefaciens for 3 days on MS multiplication medium supplemented with 100μM acetosyringone resulted on average in transient expression of 52.5% of the explants with 1.6 blue stained zones per explant. Cocultivated explants on MS selection medium containing 300mgl-1 kanamycin resulted in 1.5% chimeric putative transgenic shoots. This is the first report on the micropropagation and genetic transformation of marula, Sclerocarya birrea subsp caffra.
South Africa’s National Research Foundation Institutional Research Development Program (NRF-IRDP)
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Cameron, Emilie C. "Fruit Fly Pests of Northwestern Australia." University of Sydney, 2007. http://hdl.handle.net/2123/1711.

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Doctor of Philosophy(PhD),
Until recently, Northwestern Australia was thought to be relatively free of serious fruit fly pests. Although a noxious strain, present in Darwin since 1985, was widely believed to be an infestation of the Queensland fruit fly, Bactrocera tryoni, from the East coast, the fruit flies present outside this area were believed to be the benign endemic species, B. aquilonis. However, during the year 2000, infestations of fruit flies were discovered on major commercial crops in both Western Australia and the Northern Territory. It was not known whether these outbreaks were due to an invasion of the major pest species, Bactrocera tryoni, a change in the behaviour of B. aquilonis, or a hybridisation event between the two species. Finding the source of these outbreaks has been complicated by the fact that, since B. tryoni and B. aquilonis are virtually indistinguishable morphologically, it was not known which species are present in the region. Traditionally any tryoni complex fly caught in the Northwest was called B. aquilonis based solely on location. In order to get a good population profile of the region, an extensive trapping program was set up to include flies from urban areas, commercial crops and natural areas where the benign strain is thought to remain. Tests of genetic differentiation and clustering analyses revealed a high degree of homogeneity in the Northwest samples, suggesting that just one species is present in the region. The Northwest samples were genetically differentiated from the Queensland samples but only to a small degree (FST =0.0153). MtDNA sequencing results also showed a small degree of differentiation between these regions. A morphological study of wing shape indicated that there are some minor identifiable morphological differences between East coast and Northwest laboratory reared flies. This difference was greater than that seen between B. jarvisi populations across the same geographic range. The results suggest that the flies caught in the Northwest are a separate population of B. tryoni. Soon after pest flies were discovered in Darwin, a population became established in Alice Springs. This population had a low genetic diversity compared with Queensland and Darwin populations, and showed evidence of being heavily founded. In 2000, an outbreak was discovered in the nearby town of Ti Tree. Due to the geographic and genetic similarity of these populations, Alice Springs was determined to be the source of the Ti Tree outbreak. To investigate the founding of these populations, a program was developed to estimate the propagule size. Using a simulation method seven different statistics were tested for estimating the propagule size of an outbreak population. For outbreaks originating from populations with high genetic diversity, the number of alleles was a good estimator of propagule size. When, however, the genetic diversity of the source population was already reduced, allele frequency measures, particularly the likelihood of obtaining the outbreak population from the source population, gave more accurate estimates. Applying this information to the Alice Springs samples, it was estimated that just five flies were needed to found the major population in and around Alice Springs. For Ti Tree, the propagule size was estimated to be 27 flies (minimum 10). In 2000, a much larger outbreak occurred in the developing horticultural region of Kununurra in northern Western Australia. An important question for the management of the problem is whether there is an established fly population or the flies are reinvading each year. This population was found to have a large amount of gene flow from the Northern Territory. Within the Kununurra samples, one group of flies was genetically differentiated from all the other samples. This group came from a small geographic area on the periphery of Kununurra and appeared to be the result of an invasion into this area at the time when the population was building up following the dry season. A further threat to the Northwest horticultural regions comes from B. jarvisi. A recent increase in the host range of this species has lead to speculation that it may become a greater pest in Northwestern Australia. At the present time, protocols for the population monitoring and disinfestation of this species are not in place. Here it is shown that B. jarvisi eggs are more heat tolerant than B. tryoni eggs and that monitoring of B. jarvisi populations is possible using cue lure traps placed according to fruiting time and location of their favoured host, Planchonia careya.
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Arias, Mella Maria Belen. "Global and local population genetics of the Mediterranean fruit fly, Ceratitis capitata, an invasive pest of fruit crops." Thesis, Imperial College London, 2018. http://hdl.handle.net/10044/1/64776.

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Invasive species are recognised as one of the most important, growing threat to food biosecurity, causing a significant economic loss in agricultural systems. Despite their damaging effect, they are attractive models for the study of evolution and adaptation in newly colonised environments. Currently, the global climate represents one key potential stressors to impact the food biosecurity because of its influence in the distribution and change in the abundance of agricultural pests. The tephritid fruit flies (Diptera: Tephritidae) contain some of the most successful invaders and most devastating agricultural pests recognised worldwide. Among them, the Mediterranean fruit fly Ceratitis capitata and the South American fruit flies in the genus Anastrepha are particularly important for crop production. Insecticides have been used extensively for their control. This thesis investigates factors that are related to invasiveness in these species, in order to provide novel information that will ultimately improve management control methods. First, environmental niche modelling was used to determine the influence of climate change in the potential habitat distribution of C. capitata, predicting both polewards expansion as well as greater connectivity. Next, historical global dispersal patterns of the medfly over the past two centuries were investigated using molecular and genetic approaches. In Chapter 4, different attempts to identify the point mutation G328A Ccace2 gene that confers resistance to insecticides were assessed at local and intercontinental scale, in part by studying museum specimens from before and after the use of pesticides. Additionally, to improve genetic knowledge of this invasive species, the mitogenome of different species of Anastrepha were sequenced and analysed together with others tephritid. This investigation provides crucial information revealing the evolutionary factors that influence the medfly’s successful invasions and will contribute to the development of evidence-driven pest management protocols, especially in the Americas, including the choice among different control methods as well as the establishment of quarantine procedures to interrupt colonisation routes.
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Hoogwerf, A. M. "The genetics of a small autosomal region of Drosophila melanogaster, including the structural gene for larval serum protein two." Thesis, University of Oxford, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370260.

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Ribeiro, Serra Octávio Manuel. "Towards increasing genetic variability and improving fruit quality in peach using genomic and bioinformatic tools." Doctoral thesis, Universitat Autònoma de Barcelona, 2017. http://hdl.handle.net/10803/460882.

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El préssec és un dels fruiters més conreats al món, la producció del qual s’ha duplicat en els darrers vint anys. Per augmentar el seu consum cal millorar-ne la qualitat, un repte difícil ja que es tracta d’una fruita de curta vida postcollita. Addicionalment, el préssec te poca variabilitat genètica el que implica que les seves possibilitats de millora genètica són limitades. Altres elements que condicionen el futur del conreu del préssec son el canvi climàtic, la globalització del mercat i els canvis d’hàbits alimentaris dels consumidors. Per a encarar aquests reptes caldrà implementar noves estratègies per a explotar millor la variabilitat existent dins l’espècie i per a introduir nous gens d’altres espècies silvestres o conreades properes, que son els objectius d’aquesta tesi. Primer, vam estudiar la base genètica del caràcter de maduració lenta del fruit (SMF), la carn del qual es manté ferma més temps que la carn tova (MF) que actualment domina el mercat, el que resulta en una vida postcollita més llarga. La referència pel caràcter SMF a Espanya és la varietat de nectarina ‘Big Top’, que es va usar per a generar dues descendències F1 amb pares MF. Vam construir mapes genètics d’alta densitat amb SNPs i vam mesurar el caràcter SMF en ambdues descendències. Els dos loci de caràcters quantitatius (QTLs) trobats colocalitzaren amb dos QTLs d’època de maduració en els grups de lligament 4 (G4) i G5, explicant >20% de la variabilitat fenotípica observada cadascun. El QTL del G5 només es trobà a ‘Big Top’ i és possiblement el causant principal del seu comportament SMF. En segon lloc, assajarem una nova estratègia, que anomenàrem introgressió assistida amb marcadors (MAI), per a introduir nova variabilitat d’origen exòtic en espècies llenyoses en un curt període de temps - dues generacions després de l’híbrid - usant marcadors moleculars per a accelerar el procés. Como resultat lateral vam desenvolupar un joc de línies d’introgressió (ILs) d’ametller en el fons genètic del presseguer, una eina útil per a l’anàlisi genètica de caràcters d’herència complexa. Finalment, estudiàrem el procés de recombinació usant dades de reseqüència d’ADN dels descendents d’un encreuament entre un híbrid ametller × presseguer i el seu genitor masculí (el presseguer ‘Earlygold’), el que permeté comparar la recombinació inter i intraespecífica. Entendre quins factors controlen la formació dels entrecreuaments (COs) és essencial pel control de la introgressió d’un donant exòtic al germoplasma cultivat. Desenvolupàrem un programa bioinformàtic per a detectar SNPs i indels, genotipàrem in silico cada individu i determinàrem la posició dels COs. Un primer resultat fou una distribució heterogènia de COs al genoma, però semblant en meiosis intra i interespecífiques, encara que la recombinació interespecífica va ser molt menys freqüent que la intraespecífica. Localitzàrem les regions dels COs i en vam trobar algunes amb més COs dels esperats (hotspots), detectant motius d’ADN associats a aquestes regions. Altres esdeveniments de recombinació anomenats “noncrossovers” es van detectar a la meiosi de l’híbrid a una freqüència aproximadament cinc vegades més alta que la dels COs. Finalment, associàrem la baixa recombinació en l’híbrid amb la baixa fertilitat del seu pol·len, indicant que la diversitat de seqüència del ADN es una possible causa d’aïllament reproductiu en plantes. En conjunt, els nostres resultats proporcionen informació nova sobre l’herència de caràcters clau per a la millora del presseguer, eines per a l’anàlisi fi de caràcters d’herència complexa, una estratègia de millora per a la introgressió de gens d’interès procedents d’altres espècies i dades sobre el funcionament de la recombinació interespecífica. Al mateix temps, hem produïm informació sobre eines moleculars que permeten aplicar aquests coneixements a l’obtenció de varietats millorades.
Peach is a major fruit species, cultivated worldwide, with an outstanding adaptation to contrasting climate conditions, which world production has doubled in the last two decades. Increasing peach consumption requires enhancing fruit quality, a challenging objective for a fruit that has a short postharvest life. An important shortcoming for peach breeding is its low level of variability, narrowing the possibilities for its improvement. Other elements that may further condition peach production and breeding are climate change, the globalization of peach market and the changing eating habits of the population. Facing these challenges requires implementation of new strategies allowing a better exploitation of the variability that still exists inside the species and the introduction of new variability using other cultivated or wild relatives. In this work we aim to contribute in the development of such novel approaches. First we studied the genetic basis of the slow melting flesh (SMF) trait, characterized by the longer postharvest life of fruits, with higher firmness values after harvest than regular melting flesh (MF) peaches. SMF is present in some North American peach and nectarine cultivars, one of which (‘Big Top’), has become a reference for nectarine production in Spain. We studied two F1 populations using ‘Big Top’ as female parent, built linkage maps using the 9k peach SNP chip, and measured SMF. Quantitative trait loci (QTL) analysis allowed us to find two consistent QTLs for SMF co-localizing with maturity date QTLs in linkage group four (G4) and G5 that explained each >20% of phenotypic variability. The QTL on G5 was exclusive to ‘Big Top’, which can be the cause of its specific SMF behavior. In a second topic, we tested a new strategy, marker assisted introgression (MAI), to introduce new variability from exotic sources into cultivated perennial species in a short timeframe, using molecular markers to accelerate the process. As a side result we developed a set of introgression lines (ILs) of almond in the genetic background of peach, an optimal tool for genetic analysis of complex traits. In the final topic of this thesis we aimed to study the recombination process in wide crosses (almond × peach) in comparison with that of intraspecific crosses (peach), using resequence data of a cross between an almond × peach hybrid and its peach parent (‘Earlygold’). Understanding which factors control the occurrence of crossovers (COs) is critical to control the introgression process from an exotic donor to elite cultivated materials. We developed a bioinformatics pipeline to detect SNP and indel variants, in silico genotyped each individual, and determined the CO positions using the variants called. We found that the distribution of COs was heterogeneous in the genome, but similar in intra and interspecific meioses, and that a strong reduction of recombination occurred at the interspecific level, which we associated with DNA sequence divergence. We studied the CO regions, found some with high CO frequency (hotspots) and identified DNA motifs associated with these regions. Other recombination events such as noncrossovers (NCOs) were also detected for the hybrid meiosis about five times more frequently than COs. Finally, we associated low recombination in the hybrid with low pollen fertility, suggesting DNA sequence divergence as a possible cause for a gradual process of reproductive isolation in plants. Overall, our results supply new information on the inheritance of key commercial peach traits, tools for the fine analysis of complex characters, a breeding strategy for the enrichment of peach genome with valuable genes from other species, and data on how interspecific recombination proceeds. At the same time, we provide molecular tools to facilitate the translation of this knowledge into new and improved cultivars.
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Books on the topic "Fruit genetics"

1

Eucarpia Symposium on Fruit Breeding and Genetics (1996 East Malling, Kent). Eucarpia Symposium on Fruit Breeding and Genetics. Edited by Tobutt K. R, Alston F. H, International Society for Horticultural Science. Section for Fruit., and Eucarpia Fruit Section. [Leuven, Belgium]: ISHS, 1998.

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Holefors, Anna. Genetic transformation of the apple rootstock M26 with genes influencing growth properties. Alnarp: Swedish University of Agricultural Sciences, 1999.

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Fruit breeding. New York: Springer, 2009.

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Kole, Chittaranjan, and Albert G. Abbott. Genetics, genomics and breeding of stone fruits. St. Helier, Jersey, British Channel Islands: Science Publishers, 2012.

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Jeppsson, Niklas. Genetic variation and fruit quality in sea buckthorn and black chokeberry. Uppsala: Swedish University of Agricultural Sciences, 1999.

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Hanna, Schmidt, and Kellerhals Markus, eds. Progress in temperate fruit breeding: Proceedings of the Eucarpia Fruit Breeding Section Meeting held at Wädenswil/Einsiedeln, Switzerland, from August 30 to September 3, 1993. Dordrecht: Kluwer Academic, 1994.

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Species, International Symposium on Biotechnology of Fruit. First International Symposium on Biotechnology of Fruit Species: September 1-5, 2008 in Dresden, Germany : program and abstract book. Quedlinburg: JKI, 2008.

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International Symposium on Biotechnology of Fruit Species (1st 2008 Dresden, Germany). First International Symposium on Biotechnology of Fruit Species: September 1-5, 2008 in Dresden, Germany : program and abstract book. Quedlinburg: JKI, 2008.

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Lim, Burton K. Phylogenetic analysis of restriction site variation in neotropical short-tailed fruit bats (Carollia). [Toronto]: B. Lim, 1996.

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Lords of the fly: Drosophila genetics and the experimental life. Chicago: University of Chicago Press, 1994.

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Book chapters on the topic "Fruit genetics"

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Atkinson, Ross G., and Roswitha Schröder. "Genetics of Fruit Softening." In Compendium of Plant Genomes, 205–17. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32274-2_16.

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McPheron, B. A. "Recent Advances and Future Directions in Tephritid Population Genetics." In Fruit Flies, 59–64. New York, NY: Springer New York, 1993. http://dx.doi.org/10.1007/978-1-4757-2278-9_12.

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Yano, Ryoichi, and Hiroshi Ezura. "Fruit Ripening in Melon." In Genetics and Genomics of Cucurbitaceae, 345–75. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/7397_2016_11.

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Thompson, A. K., R. K. Prange, R. D. Bancroft, and T. Puttongsiri. "Physiology, ripening and genetics." In Controlled atmosphere storage of fruit and vegetables, 50–63. Wallingford: CABI, 2018. http://dx.doi.org/10.1079/9781786393739.0050.

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Gur, Amit, Itay Gonda, Vitaly Portnoy, Galil Tzuri, Noam Chayut, Shahar Cohen, Yelena Yeselson, et al. "Genomic Aspects of Melon Fruit Quality." In Genetics and Genomics of Cucurbitaceae, 377–408. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/7397_2016_29.

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Grumet, Rebecca, and Marivi Colle. "Genomic Analysis of Cucurbit Fruit Growth." In Genetics and Genomics of Cucurbitaceae, 321–44. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/7397_2016_4.

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Paull, Robert E., Pingfang Wu, and Nancy J. Chen. "Genomics of Papaya Fruit Development and Ripening." In Genetics and Genomics of Papaya, 241–75. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-8087-7_14.

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Booth, Ian R. "Microbial Channels: Forbidden Fruit from Missense Rather than Nonsense." In The Lure of Bacterial Genetics, 141–52. Washington, DC, USA: ASM Press, 2014. http://dx.doi.org/10.1128/9781555816810.ch15.

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Aryal, Rishi, and Ray Ming. "Cloning Major Genes Controlling Fruit Flesh Color in Papaya." In Genetics and Genomics of Papaya, 341–53. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-8087-7_18.

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Service, Philip M., and Amanda J. Fales. "Evolution of delayed reproductive senescence in male fruit flies: sperm competition." In Genetics and Evolution of Aging, 130–44. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-017-1671-0_12.

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Conference papers on the topic "Fruit genetics"

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"Development of sweet pepper F1 hybrids based on MAS methods by fruit quality and resistance genes." In Plant Genetics, Genomics, Bioinformatics, and Biotechnology. Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 2019. http://dx.doi.org/10.18699/plantgen2019-016.

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"Biochemical, molecular and genetic aspects of fruit ripening in green-fruited and red-fruited tomato species." In Plant Genetics, Genomics, Bioinformatics, and Biotechnology. Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 2019. http://dx.doi.org/10.18699/plantgen2019-179.

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"The collection of stone fruit cultures of the SBI SO SRI “Zhigulevskiye sady” – mobilization, studying, the prospects of use." In Plant Genetics, Genomics, Bioinformatics, and Biotechnology. Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 2019. http://dx.doi.org/10.18699/plantgen2019-041.

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"Peculiarities of heterosis manifested by yield and fruit quality traits in pepper F1 hybrids developed using classical and MAS methods." In Current Challenges in Plant Genetics, Genomics, Bioinformatics, and Biotechnology. Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences Novosibirsk State University, 2019. http://dx.doi.org/10.18699/icg-plantgen2019-72.

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"The effect of "early"protein of papillomavirus HPV16 E2 made in plant expression system on the base of tomato fruit on tumor formation in mice infected with cancer HeLa cells." In Plant Genetics, Genomics, Bioinformatics, and Biotechnology. Novosibirsk ICG SB RAS 2021, 2021. http://dx.doi.org/10.18699/plantgen2021-168.

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Saccone, Giuseppe. "Genetics of sex determination in the Mediterranean fruit fly: From basic to applied research." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.92765.

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Krivda, S. I., N. V. Nevkrytaya, S. S. Babanina, N. S. Krivchik, G. D. Kravchenko, and E. E. Soboleva. "Analysis of the collection of Coriandrum sativum L. by a set of characteristics." In CURRENT STATE, PROBLEMS AND PROSPECTS OF THE DEVELOPMENT OF AGRARIAN SCIENCE. Federal State Budget Scientific Institution “Research Institute of Agriculture of Crimea”, 2020. http://dx.doi.org/10.33952/2542-0720-20205-9-10-66.

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In 2017-2019, the Coriandrum sativum L. collection supported by the FSBSI “Research Institute of Agriculture of Crimea” was analyzed by a set of characteristics. It includes 164 samples from 30 regions of the world. Collection samples were obtained from the Federal Research Center “N. I. Vavilov All-Russian Institute of Plant Genetic Resources” (VIR). Twenty-six samples, promising for further breeding studies, were selected. These samples stand out from the crowd due to the content of essential oil in fruits (0.90 to 3.62%) and fruit yield (12.0 to 73.9 g per plot). The same indicators in the varieties bred in the FSBSI “Research Institute of Agriculture of Crimea” are 2.99-3.26% and 9.7-33.0 g, respectively.
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Sattarov, D. S., and Sh S. Murodov. "Seed productivity of Allium stipitatum (Alliaceae) in cultural conditions (Tajikistan)." In РАЦИОНАЛЬНОЕ ИСПОЛЬЗОВАНИЕ ПРИРОДНЫХ РЕСУРСОВ В АГРОЦЕНОЗАХ. Federal State Budget Scientific Institution “Research Institute of Agriculture of Crimea”, 2020. http://dx.doi.org/10.33952/2542-0720-15.05.2020.33.

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This article presents the results of studying the plant introduction and the possibility of cultivation of Persian shallot – Allium stipitatum Regel. This plant is popularly used in pickled and salt form for the preparation of various salads, because of which it is classified as an endangered species and is listed in the Red Data Book of the Republic of Tajikistan. Studies on the seed productivity of domesticated Persian shallot were carried out in 2017- 2019 on the territory of experimental plots of the National Republican Center of the Genetic Resources of the Tajik Academy of Agricultural Sciences (Gissar Valley), which is located in the northern part of Rudaki district at an altitude of 730 m above sea level. It was established that the average number of fruits is 250 ± 15.7 pcs; the number of fruit set is 210 pcs; the total number of seeds is 809 pcs per fruit. When compared with the natural growing conditions (Gajne area), it turned out that the seed productivity of Persian shallot under natural conditions is averagely 16.7% - 24.5% higher than in the Rudaki district (Gissar Valley). As a result of the studies, it was found that it is necessary to choose areas with natural protection from sunlight (protective forest belts or stool beds) to create more favorable conditions in the first years of adaptation of Persian shallot in the Rudaki district.
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"Reduced ethylene production in tomato fruits upon CRISPR/Cas9-mediated LeMADS-RIN mutagenesis." In Plant Genetics, Genomics, Bioinformatics, and Biotechnology. Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 2019. http://dx.doi.org/10.18699/plantgen2019-075.

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Handler, Alfred. "Genetic engineering of fruit fly genomes for population control." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.90805.

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Reports on the topic "Fruit genetics"

1

Stanley, Craig, Charles Hadley King, Michelle Thornton, and Rob Kulathinal. Behavioral Genetics: Investigating the genes of a complex phenotype in fruit flies. Genetics Society of America Peer-Reviewed Education Portal (GSA PREP), January 2016. http://dx.doi.org/10.1534/gsaprep.2016.001.

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Rajarajan, Kunasekaran, Alka Bharati, Hirdayesh Anuragi, Arun Kumar Handa, Kishor Gaikwad, Nagendra Kumar Singh, Kamal Prasad Mohapatra, et al. Status of perennial tree germplasm resources in India and their utilization in the context of global genome sequencing efforts. World Agroforestry, 2020. http://dx.doi.org/10.5716/wp20050.pdf.

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Tree species are characterized by their perennial growth habit, woody morphology, long juvenile period phase, mostly outcrossing behaviour, highly heterozygosity genetic makeup, and relatively high genetic diversity. The economically important trees have been an integral part of the human life system due to their provision of timber, fruit, fodder, and medicinal and/or health benefits. Despite its widespread application in agriculture, industrial and medicinal values, the molecular aspects of key economic traits of many tree species remain largely unexplored. Over the past two decades, research on forest tree genomics has generally lagged behind that of other agronomic crops. Genomic research on trees is motivated by the need to support genetic improvement programmes mostly for food trees and timber, and develop diagnostic tools to assist in recommendation for optimum conservation, restoration and management of natural populations. Research on long-lived woody perennials is extending our molecular knowledge and understanding of complex life histories and adaptations to the environment, enriching a field that has traditionally drawn its biological inference from a few short-lived herbaceous species. These concerns have fostered research aimed at deciphering the genomic basis of complex traits that are related to the adaptive value of trees. This review summarizes the highlights of tree genomics and offers some priorities for accelerating progress in the next decade.
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