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Relevant bibliographies by topics / Genetic analysis; Flies; Traits

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Academic literature on the topic 'Genetic analysis; Flies; Traits'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 February 2022

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Journal articles on the topic "Genetic analysis; Flies; Traits"

1

Cowley, D. E., and W. R. Atchley. "Quantitative Genetics of Drosophila Melanogaster. II. Heritabilities and Genetic Correlations between Sexes for Head and Thorax Traits." Genetics 119, no. 2 (June 1, 1988): 421–33. http://dx.doi.org/10.1093/genetics/119.2.421.

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Abstract A quantitative genetic analysis is reported for traits on the head and thorax of adult fruit flies, Drosophila melanogaster. Females are larger than males, and the magnitude of sexual dimorphism is similar for traits derived from the same imaginal disc, but the level of sexual dimorphism varies widely across discs. The greatest difference between males and females occurs for the dimensions of the sclerotized mouthparts of the proboscis. Most of the traits studied are highly heritable with heritabilities ranging from 0.26 to 0.84 for males and 0.27 to 0.81 for females. In general, heritabilities are slightly higher for males, possibly reflecting the effect of dosage compensation on X-linked variance. The X chromosome contributes substantially to variance for many of these traits, and including results reported elsewhere, the variance for over two-thirds of the traits studied includes X-linked variance. The genetic correlations between sexes for the same trait are generally high and close to unity. Coupled with the small differences in the traits between sexes for heritabilities and phenotypic variances, these results suggest that selection would be very slow to change the level of sexual dimorphism in size of various body parts.

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Ling, Ashley, Taylor Krause, Bradley Heins, Nancy Hinkle, Dean Pringle, Samuel E. Aggrey, and Romdhane Rekaya. "48 Genetic study of horn fly abundance in beef cattle." Journal of Animal Science 98, Supplement_4 (November 3, 2020): 16–17. http://dx.doi.org/10.1093/jas/skaa278.031.

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Abstract Disturbing the non-symbiotic relationship between horn flies and cattle is of economic, health, and animal welfare importance. Reliance on management and insecticides has proven inadequate. In the United States, horn flies are estimated to cause more than $1 billion in economic losses on pastured cattle annually. Although insecticides provide temporary control, their efficacy is hampered by several factors. Intensive insecticide use has led to horn fly resistance and decreased predation on horn flies by other insects. Due to the cost and logistic complexity of measuring fly resistance traits under commercial conditions, the genetic basis of these traits remains largely unknown. Only a few heritability estimates are available based on small-scale studies. Currently, the economic injury threshold (EIT) due to horn fly abundance (onset of production decay) is set at around 200 flies for beef cattle. This threshold is largely heuristically set. Additionally, the rate of decay in performance as a function of fly abundance after injury onset is unknown. It is also likely that EIT is breed and animal specific. Data used in this study was collected during the summer of 2019. Animals were not treated or managed in any way to control horn flies prior to data collection. Animals were assessed subjectively and based on image counts for horn fly abundance. Estimates of heritability of horn fly abundance ranged between 0.14 and 0.22 for subjective and image-based phenotypes. The lowest heritability was for the subjective assessment, likely due to the excessive variation between evaluators. Changepoint model-based analysis showed that EIT is variable between sire families, ranging from 265 to 413 flies. Furthermore, there was significant difference in the decay of performance after the onset of injury. The rate of decay ranged between -0.0003 and -0.00018. Collectively, these results indicate the potential to improve horn fly resistance/tolerance using genetic tools.

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Pegueroles, Glòria, Francesc Mestres, Mercè Argemí, and Lluís Serra. "Phenotypic plasticity in colonizing populations of Drosophila subobscura." Genetics and Molecular Biology 22, no. 4 (December 1999): 511–16. http://dx.doi.org/10.1590/s1415-47571999000400008.

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The phenotypic plasticity of some quantitative traits of two colonizing populations of Drosophila subobscura (Davis and Eureka, California) was studied. Temperature effects and the effect of rearing in the laboratory were studied. Laboratory rearing during four generations at 18ºC significantly increased the wing and tibial length. This increase was similar to that obtained when the flies were reared at 13ºC during two generations.The low temperature environment can be considered more stressful for females than for males, as shown by the increase of phenotypic variance. The two populations analyzed had great phenotypic plasticity in spite of the genetic bottleneck during the colonization event. Our study shows that keeping flies for a relatively short time in the laboratory significantly changes some quantitative traits, emphasizing the need to analyze flies immediately after collecting them in order to obtain reliable estimates for the analysis of these traits in natural populations.

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Kopp, Artyom, Rita M. Graze, Shizhong Xu, Sean B. Carroll, and Sergey V. Nuzhdin. "Quantitative Trait Loci Responsible for Variation in Sexually Dimorphic Traits in Drosophila melanogaster." Genetics 163, no. 2 (February 1, 2003): 771–87. http://dx.doi.org/10.1093/genetics/163.2.771.

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Abstract To understand the mechanisms of morphological evolution and species divergence, it is essential to elucidate the genetic basis of variation in natural populations. Sexually dimorphic characters, which evolve rapidly both within and among species, present attractive models for addressing these questions. In this report, we map quantitative trait loci (QTL) responsible for variation in sexually dimorphic traits (abdominal pigmentation and the number of ventral abdominal bristles and sex comb teeth) in a natural population of Drosophila melanogaster. To capture the pattern of genetic variation present in the wild, a panel of recombinant inbred lines was created from two heterozygous flies taken directly from nature. High-resolution mapping was made possible by cytological markers at the average density of one per 2 cM. We have used a new Bayesian algorithm that allows QTL mapping based on all markers simultaneously. With this approach, we were able to detect small-effect QTL that were not evident in single-marker analyses. Our results show that at least for some sexually dimorphic traits, a small number of QTL account for the majority of genetic variation. The three strongest QTL account for >60% of variation in the number of ventral abdominal bristles. Strikingly, a single QTL accounts for almost 60% of variation in female abdominal pigmentation. This QTL maps to the chromosomal region that Robertson et al. have found to affect female abdominal pigmentation in other populations of D. melanogaster. Using quantitative complementation tests, we demonstrate that this QTL is allelic to the bric a brac gene, whose expression has previously been shown to correlate with interspecific differences in pigmentation. Multiple bab alleles that confer distinct phenotypes appear to segregate in natural populations at appreciable frequencies, suggesting that intraspecific and interspecific variation in abdominal pigmentation may share a similar genetic basis.

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Nagle, Keith J., and William J. Bell. "Genetic control of the search tactic ofDrosophila melanogaster: An ethometric analysis ofrover/sitter traits in adult flies." Behavior Genetics 17, no. 4 (July 1987): 385–408. http://dx.doi.org/10.1007/bf01068138.

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6

Laursen, Stine Frey, Laura Skrubbeltrang Hansen, Simon Bahrndorff, Hanne Marie Nielsen, Natasja Krog Noer, David Renault, Goutam Sahana, Jesper Givskov Sørensen, and Torsten Nygaard Kristensen. "Contrasting Manual and Automated Assessment of Thermal Stress Responses and Larval Body Size in Black Soldier Flies and Houseflies." Insects 12, no. 5 (April 22, 2021): 380. http://dx.doi.org/10.3390/insects12050380.

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Within ecophysiological and genetic studies on insects, morphological and physiological traits are commonly assessed and phenotypes are typically obtained from manual measurements on numerous individuals. Manual observations are, however, time consuming, can introduce observer bias and are prone to human error. Here, we contrast results obtained from manual assessment of larval size and thermal tolerance traits in black soldier flies (Hermetia illucens) and houseflies (Musca domestica) that have been acclimated under three different temperature regimes with those obtained automatically using an image analysis software (Noldus EthoVision XT). We found that (i) larval size estimates of both species, obtained by manual weighing or by using the software, were highly correlated, (ii) measures of heat and cold tolerance using manual and automated approaches provided qualitatively similar results, and (iii) by using the software we obtained quantifiable information on stress responses and acclimation effects of potentially higher ecological relevance than the endpoint traits that are typically assessed when manual assessments are used. Based on these findings, we argue that automated assessment of insect stress responses and largescale phenotyping of morphological traits such as size will provide new opportunities within many disciplines where accurate and largescale phenotyping of insects is required.

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Johns, Philip M., L. LaReesa Wolfenbarger, and Gerald S. Wilkinson. "Genetic linkage between a sexually selected trait and X chromosome meiotic drive." Proceedings of the Royal Society B: Biological Sciences 272, no. 1576 (August 23, 2005): 2097–103. http://dx.doi.org/10.1098/rspb.2005.3183.

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Previous studies on the stalk-eyed fly, Cyrtodiopsis dalmanni , have shown that males with long eye-stalks win contests and are preferred by females, and artificial selection on male relative eye span alters brood sex-ratios. Subsequent theory proposes that X-linked meiotic drive can catalyse the evolution of mate preferences when drive is linked to ornament genes. Here we test this prediction by mapping meiotic drive and quantitative trait loci (QTL) for eye span. To map QTL we genotyped 24 microsatellite loci using 1228 F2 flies from two crosses between lines selected for long or short eye span. The crosses differed by presence or absence of a drive X chromosome, X D , in the parental male. Linkage analysis reveals that X D dramatically reduces recombination between X and X D chromosomes. In the X D cross, half of the F2 males carried the drive haplotype, produced partially elongated spermatids and female-biased broods, and had shorter eye span. The largest QTL mapped 1.3 cM from drive on the X chromosome and explained 36% of the variation in male eye span while another QTL mapped to an autosomal region that suppresses drive. These results indicate that selfish genetic elements that distort the sex-ratio can influence the evolution of exaggerated traits.

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Pletcher, Scott D., David Houle, and James W. Curtsinger. "The Evolution of Age-Specific Mortality Rates in Drosophila melanogaster: Genetic Divergence Among Unselected Lines." Genetics 153, no. 2 (October 1, 1999): 813–23. http://dx.doi.org/10.1093/genetics/153.2.813.

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Abstract Age-specific effects of spontaneous mutations on mortality rates in Drosophila are inferred from three large demographic experiments. Data were collected from inbred lines that were allowed to accumulate spontaneous mutations for 10, 19, and 47 generations. Estimates of age-specific mutational variance for mortality were based on data from all three experiments, totalling ∼225,000 flies, using a model developed for genetic analysis of age-dependent traits (the character process model). Both within- and among-generation analyses suggest that the input of genetic variance is greater for early life mortality rates than for mortality at older ages. In females, age-specific mutational variances ranged over an order of magnitude from 5.96 × 10-3 at 2 wk posteclosion to 0.02 × 10-3 at 7 wk. The male data show a similar pattern. Age-specific genetic variances were substantially less at generation 47 than at generation 19—an unexplained observation that is likely due to block effects. Mutational correlations among mortality rates at different ages tend to increase with the accumulation of new mutations. Comparison of the mutation-accumulation lines at generations 19 and 47 with their respective control lines suggests little age-specific mutational bias.

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Gibert, Patricia, Brigitte Moreteau, Jean-Claude Moreteau, and Jean R. David. "Genetic variability of quantitative traits in Drosophila melanogaster (fruit fly) natural populations: analysis of wild-living flies and of several laboratory generations." Heredity 80, no. 3 (March 1998): 326–35. http://dx.doi.org/10.1046/j.1365-2540.1998.00301.x.

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Hosokawa, Takahiro, Yoshitomo Kikuchi, Naruo Nikoh, Xian-Ying Meng, Mantaro Hironaka, and Takema Fukatsu. "Phylogenetic Position and Peculiar Genetic Traits of a Midgut Bacterial Symbiont of the Stinkbug Parastrachia japonensis." Applied and Environmental Microbiology 76, no. 13 (May 7, 2010): 4130–35. http://dx.doi.org/10.1128/aem.00616-10.

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ABSTRACT The stinkbug Parastrachia japonensis (Hemiptera: Parastrachiidae) is known for its prolonged prereproductive nonfeeding period, maternal care of eggs in an underground nest, and maternal collection and provisioning of food (fruits) for nymphs. A previous study suggested that a bacterial symbiont is involved in uric acid recycling in this insect during the nonfeeding period, but the identity of this symbiont has not been determined. Here we characterized a novel bacterial symbiont obtained from P. japonensis. Molecular phylogenetic analyses based on 16S rRNA, gyrB, and groEL gene sequences consistently indicated that this symbiont constituted a distinct lineage in the Gammaproteobacteria that has no close relatives but is allied with gut symbionts of acanthosomatid and plataspid stinkbugs, as well as with endocellular symbionts of sharpshooters, tsetse flies, and aphids. The symbiont genes had a remarkably AT-biased nucleotide composition and exhibited significantly accelerated molecular evolution. The symbiont genome was extremely reduced; its size was estimated to be 0.85 Mb. These results suggest that there has been an intimate host-symbiont association over evolutionary time. The symbiont was localized in swollen crypts in a posterior part of the midgut, which was a specialized symbiotic organ. The possibility that the symbiont is involved in uric acid recycling is discussed. The designation “Candidatus Benitsuchiphilus tojoi” is proposed for the symbiont.

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Dissertations / Theses on the topic "Genetic analysis; Flies; Traits"

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Macdonald, Stuart J. "Evolutionary and genomic analyses of complex traits in Drosophila." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.365832.

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Kirin, Mirna. "Genetic analysis of retinal traits." Thesis, University of Edinburgh, 2014. http://hdl.handle.net/1842/9619.

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Retina is a unique site in the human body where the microcirculation can be imaged directly and non-invasively, allowing us to study in vivo the structure and pathology of the human microcirculation. Retinal images can be quantitatively assessed with computerized imaging techniques, enabling us to measure several different quantitative traits derived from the retinal vasculature. Arterial and venular calibres are the most extensively studied traits of the retinal microvasculature and numerous epidemiological studies demonstrated promising associations with systemic and ocular diseases as well as with disease markers. However, there has been a lack of research into pathophysiological processes leading to retinal vascular signs, and how they link retinal microcirculation with coronary and cerebral microvasculature change. Information about genetic determinants underlying retinal vascular structure is therefore important for understanding the processes leading to microvascular pathophysiology. Two genome wide association studies have been published so far revealing four loci associated with retinal venular calibre and one locus with arteriolar calibre. Here the results from the genome-wide association analysis of 10 different retinal vessel traits in two population based cohorts are presented. Retinal images were measured in non-mydriatic fundus images from 808 subjects in the Orkney Complex Disease Study (ORCADES) and 390 subjects from the Croatian island of Korcula, using the semi-automated retinal vasculature measurement programme SIVA and VAMPIRE. Using pairwise estimates of kinship based on genomic sharing, heritability was calculated for each trait. Estimates of tortuosity measure and fractal dimensions present first published reports of heritability estimates for those traits. In addition correlation analysis with systemic risk factor was also completed, confirming already published results as well as revealing some new associations. A genome wide association analysis of retinal arteriolar width revealed a genome wide significant hit (1.8x10-7) in a region of chromosome 2q32 (within TTN gene). Replication was sought in a further independent Scottish population (LBC) and additional 400 retinal images were graded. The result did not replicate, however the direction of the effect was consistent and a larger sample size is required. Analysis of the remaining traits did not yield genome wide significant result,s and will also require larger sample sizes. Genetic analysis of a binary retinal trait was also explored in a case control study of retinal detachment, which is an important cause of vision loss. A two-stage genetic association discovery phase followed by a replication phase in a combined total of 2,833 RRD cases and 7,871 controls was carried out. None of the SNPs tested in the discovery phase reached the threshold for association. Further testing was carried out in independent case-control series from London (846 cases) and Croatia (120 cases). The combined meta-analysis identified one association reaching genome-wide significance for rs267738 (OR=1.29, p=2.11x10-8), a missense coding SNP and eQTL for CERS2 encoding the protein ceramide synthase 2. Additional genetic risk score, pathway analysis and genetic liability analysis were also carried out.

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Hendel, Thomas. "Genetic Tools for the Analysis of Neural Networks in Flies." Diss., lmu, 2008. http://nbn-resolving.de/urn:nbn:de:bvb:19-80505.

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Marlow, Angela J. "Genetic analysis of multivariate traits in dyslexia." Thesis, University of Oxford, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.404177.

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Randall, Joshua Charles. "Large-scale genetic analysis of quantitative traits." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:addfb69d-602c-43e3-ab18-6e6d3b269076.

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Recent advances in genotyping technology coupled with an improved understanding of the architecture of linkage disequilibrium across the human genome have resulted in genome-wide association studies (GWAS) becoming a useful and widely applied tool for discovering common genetic variants associated with both quantitative traits and disease risk. After each GWAS was completed, it left behind a set of genotypes and phenotypes, often including anthropometric measures used as covariates. Genetic associations with anthropometric measures are not well characterized, perhaps due to lack of power to detect them in the sample sizes of individual studies. To improve power to detect variants associated with complex phenotypes such as anthropometric traits, data from multiple GWAS can be combined. This thesis describes the methods and results of several such analyses performed as part of the Genome-wide Investigation of ANThropemtric measures (GIANT) consortium, and compares various different methods that can be used to perform combined analyses of GWAS. In particular, the comparisons focus on comparing differences between meta-analysis methods, in which only summary statistics that result from within-study association testing are shared between studies, and mega-analysis methods in which individual-level genotype and phenotype data is analysed together. Finally, a brief discussion of technological means that have the potential to help overcome some of the challenges associated with performing mega-analyses is offered in order to suggest future work that could be undertaken in this area.

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Groves-Kirkby, Nick. "Genetic analysis of variation in complex traits." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:4541c4e4-4538-4348-bb4b-0df6673344d2.

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Variation is a universal property of life, and much of contemporary genetics research is directed towards understanding the causes of variation in traits. Here I present the results of my investigations into the genetic and other causes of trait variation in humans and mice. I address these questions in the context of two distinct research projects, which use pre-existing data to investigate the causes of trait variation, through a range of analytic techniques. I first extract trait data from historic breeding records from the incipient Collaborative Cross (a genetic reference population of recombinant inbred mice) and use them to map genetic factors affecting litter size and other reproductive traits. Mapping reveals significant quantitative trait loci associated with litter size and time between litters, as well as a number of suggestive loci. I characterise the genetic effects at these loci and investigate candidate genes. The most robust finding, a litter size locus on chromosome 5, explains around 3% of observed variation and 24% of the variation attributable to genetics. Using data obtained from the Netherlands Twin Registry - a longitudinal database of Dutch twins - I investigate the prevalence of parent of origin effects on gene expression traits in peripheral blood in humans. I first phase individuals' genotypes by parental origin and use these genotypes to calculate the heritability of over 44,000 gene expression traits partitioned into that attributable to matching and nonmatching parent of origin. I replicate prior genomewide heritability estimates for many traits, but I find little evidence of widespread parent-of-origin effects on human gene expression in blood. On further examination, the small sample size severely limits the power to detect such effects. Nonetheless, I identify approximately 200 genes enriched for immune system processes that show evidence of parent-of-origin-specific effects on heritability.

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Riveros, Mckay Aguilera Fernando. "Genetic studies of cardiometabolic traits." Thesis, University of Cambridge, 2019. https://www.repository.cam.ac.uk/handle/1810/289420.

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Diet and lifestyle have changed dramatically in the last few decades, leading to an increase in prevalence of obesity, defined as a body mass index >30Kg/m2, dyslipidaemias (defined as abnormal lipid profiles) and type 2 diabetes (T2D). Together, these cardiometabolic traits and diseases, have contributed to the increased burden of cardiovascular disease, the leading cause of death in Western societies. Complex traits and diseases, such as cardiometabolic traits, arise as a result of the interaction between an individual's predisposing genetic makeup and a permissive environment. Since 2007, genome-wide association studies (GWAS) have been successfully applied to complex traits leading to the discovery of thousands of trait-associated variants. Nonetheless, much is still to be understood regarding the genetic architecture of these traits, as well as their underlying biology. This thesis aims to further explore the genetic architecture of cardiometabolic traits by using complementary approaches with greater genetic and phenotype resolution, ranging from studying clinically ascertained extreme phenotypes, deep molecular profiling, or sequence level data. In chapter 2, I investigated the genetic architecture of healthy human thinness (N=1,471) and contrasted it to that of severe early onset childhood obesity (N=1,456). I demonstrated that healthy human thinness, like severe obesity, is a heritable trait, with a polygenic component. I identified a novel BMI-associated locus at PKHD1, and found evidence of association at several loci that had only been discovered using large cohorts with >40,000 individuals demonstrating the power gains in studying clinical extreme phenotypes. In chapter 3, I coupled high-resolution nuclear magnetic resonance (NMR) measurements in healthy blood donors, with next-generation sequencing to establish the role of rare coding variation in circulating metabolic biomarker biology. In gene-based analysis, I identified ACSL1, MYCN, FBXO36 and B4GALNT3 as novel gene-trait associations (P < 2.5x10-6). I also found a novel link between loss-of-function mutations in the "regulation of the pyruvate dehydrogenase (PDH) complex" pathway and intermediate-density lipoprotein (IDL), low-density lipoprotein (LDL) and circulating cholesterol measurements. In addition, I demonstrated that rare "protective" variation in lipoprotein metabolism genes was present in the lower tails of four measurements which are CVD risk factors in this healthy population, demonstrating a role for rare coding variation and the extremes of healthy phenotypes. In chapter 4, I performed a genome-wide association study of fructosamine, a measurement of total serum protein glycation which is useful to monitor rapid changes in glycaemic levels after treatment, as it reflects average glycaemia over 2-3 weeks. In contrast to HbA1c, which reflects average glucose concentration over the life-span of the erythrocyte (~3 months), fructosamine levels are not predicted to be influenced by factors affecting the erythrocyte. Surprisingly, I found that in this dataset fructosamine had low heritability (2% vs 20% for HbA1c), and was poorly correlated with HbA1c and other glycaemic traits. Despite this, I found two loci previously associated with glycaemic or albumin traits, G6PC2 and FCGRT respectively (P < 5x10-8), associated with fructosamine suggesting shared genetic influence. Altogether my results demonstrate the utility of higher resolution genotype and phenotype data in further elucidating the genetic architecture of a range of cardiometabolic traits, and the power advantages of study designs that focus on individuals at the extremes of phenotype distribution. As large cohorts and national biobanks with sequencing and deep multi-dimensional phenotyping become more prevalent, we will be moving closer to understanding the multiple aetiological mechanisms leading to CVD, and subsequently improve diagnosis and treatment of these conditions.

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Albertsdóttir, Elsa. "Genetic analysis of competition traits in Icelandic horses /." Uppsala : Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/10360486.pdf.

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Keith, Deborah J. "Genetic analysis of quantitative traits in Brassica napus." Thesis, University of East Anglia, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296926.

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Edmunds, S. V. "Genetic analysis of tritrophic interactions between entompathogenic nematodes, symbiotic bacteria and blood-sucking flies." Thesis, Liverpool John Moores University, 2018. http://researchonline.ljmu.ac.uk/9708/.

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Mosquitoes are responsible for millions of deaths a year through the viruses and parasites they vector. Many of these vector species have successfully expanded their range into temperate climates due to a combination of climate change and the easy movement of goods and people around the world. The temperate climate of the U.K. is home to 34 native species, several of which bite humans and are capable of vectoring pathogens more commonly associated with warmer climates, therefore the threat of mosquito-borne illness in the U.K. is a very real possibility. Many vector mosquito species have evolved resistance to traditional chemical insecticides and the search for novel control strategies in endemic areas is a priority in vector control. Entomopathogenic nematodes (EPNs) are microscopic roundworms, which are obligate parasites of insects from the family Rhabditae. In particular, soil-dwelling nematodes from the genera Heterorhabditis and Steinernema. Presently EPNs are used in a range of plant-based industries as a chemical-pest control. However, previous laboratory research has shown that EPNs are capable of killing more than 250 species of insect including a selection of vector species and nuisance arthropods. This thesis is concerned with discovering whether commercially available and naturally occurring strains of EPNs from the U.K. could be used as an effective biocontrol agent for mosquito and chironomid species. This study includes a snapshot of the current EPN diversity in the U.K. which found four different Steinernema species, including the first molecular confirmation of Steinernema carpocapsae. EPNs from both field-collected and commercial sources were capable of killing and parasitizing two native and tropical mosquito species and Chironomus plumosus. Commercial strains were more effective at killing both, however, the native field-collected, mosquito species Ochlerotatus detritus was susceptible to field-caught EPNs, unlike the tropical, lab-reared Aedes aegypti. EPNs were found to be capable of tolerating the extremes of habitat that mosquito species can inhabit in laboratory tests. These studies have shown that with further research including viable field trials that EPNs could be very useful to add to a range of vector and nuisance control measures when used appropriately.

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Books on the topic "Genetic analysis; Flies; Traits"

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Maroni, Gustavo. Molecular and Genetic Analysis of Human Traits. New York: John Wiley & Sons, Ltd., 2007.

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Maroni, Gustavo, ed. Molecular and Genetic Analysis of Human Traits. Malden, Massachusetts, USA: Blackwell Science Inc, 2000. http://dx.doi.org/10.1002/9780470760079.

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Su, Guosheng. Genetic analysis of growth and reproductive traits in rainbow trout. Uppsala: Sveriges Lantbruksuniversitet, 1996.

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Wales), New Phytologist Symposium (2nd 1997 University of. Putting plant physiology on the map: Genetic analysis of developmental and adaptive traits : proceedings of the second New Phytologist Symposium, University of Wales Bangor, April 1997. Cambridge: Published for the New Phytologist Trust by Cambridge University Press, 1997.

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Sexton, Arnold M. Genetic Analysis of Complex Traits Using SAS. Books by Users Press, 2004.

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Molecular and Genetic Analysis of Human Traits. Blackwell Publishing Limited, 2001.

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Rice, John. Genetic Analysis of Complex Traits: Affective Disorders. John Wiley & Sons Inc, 2000.

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1955-, Saxton Arnold Myron, and SAS Institute, eds. Genetic analysis of complex traits using SAS. Cary, N.C: SAS Institute, 2004.

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Spielman, Richard S. Genetic Analysis of Complex Traits: Insulin-Dependent Diabetes Mellitus. John Wiley & Sons Inc, 2000.

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Genetic analysis of complex traits: Proceedings of Genetic Analysis Workshop 5, held at Chantilly, France, September 2-5, 1987. Liss, 1989.

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Book chapters on the topic "Genetic analysis; Flies; Traits"

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Li, Mingyao, and Gonçalo R. Abecasis. "Linkage Analysis of Qualitative Traits." In Handbook on Analyzing Human Genetic Data, 81–118. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-69264-5_3.

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Amos, Christopher I., Bo Peng, Yaji Xu, and Jianzhong Ma. "Linkage Analysis of Quantitative Traits." In Handbook on Analyzing Human Genetic Data, 119–45. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-69264-5_4.

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Kearsey, Michael J., and Harpal S. Pooni. "Genes, genetic markers and maps." In The Genetical Analysis of Quantitative Traits, 101–32. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4899-4441-2_6.

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Tian, Jichun, Zhiying Deng, Kunpu Zhang, Haixia Yu, Xiaoling Jiang, and Chun Li. "Genetic Analysis Methods of Quantitative Traits in Wheat." In Genetic Analyses of Wheat and Molecular Marker-Assisted Breeding, Volume 1, 13–40. Dordrecht: Springer Netherlands, 2015. http://dx.doi.org/10.1007/978-94-017-7390-4_2.

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Tian, Jichun, Zhiying Deng, Kunpu Zhang, Haixia Yu, Xiaoling Jiang, and Chun Li. "Genetic Analysis of Main Physiological and Morphological Traits." In Genetic Analyses of Wheat and Molecular Marker-Assisted Breeding, Volume 1, 351–443. Dordrecht: Springer Netherlands, 2015. http://dx.doi.org/10.1007/978-94-017-7390-4_6.

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Giuffra, Luis A. "Genetic Linkage Analysis: Simple Solutions for Complex Traits?" In Alcoholism, 161–66. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-5946-3_17.

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Labbe, Aurélie, Lam Opal Huang, and Claire Infante-Rivard. "Transmission Ratio Distortion: A Neglected Phenomenon with Many Consequences in Genetic Analysis and Population Genetics." In Epigenetics and Complex Traits, 265–85. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-8078-5_12.

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Thorgaard, Gary H., Paul A. Wheeler, William P. Young, Barrie D. Robison, and Sandra S. Ristow. "Genetic analysis of complex traits using clonal rainbow trout lines." In Aquatic Genomics, 395–98. Tokyo: Springer Japan, 2003. http://dx.doi.org/10.1007/978-4-431-65938-9_35.

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Demant, P., A. A. M. Hart, and L. F. M. van Zutphen. "Genetic Analysis of Multigenic Traits Using the Recombinant Congenic Strains." In New Developments in Biosciences: Their Implications for Laboratory Animal Science, 209–14. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-3281-4_34.

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Teh, Chee-Keng, Nurshazwani Amalina Sudirman, Fairuz Farhana Mohd Rodzik, Ai-Ling Ong, Qi-Bin Kwong, and David Ross Appleton. "Genetic Dissecting Complex Traits via Conventional QTL Analysis and Association Mapping." In Compendium of Plant Genomes, 131–40. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-22549-0_9.

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Conference papers on the topic "Genetic analysis; Flies; Traits"

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LI, DANQING, YONGPING LIU, HANGSHENG ZHENG, RENGANG ZHU, and YONGXIANG HUANG. "ANALYSIS OF GENETIC EFFECTS ON GROWTH TRAITS IN EUCALYPTUS MAIDENII F. MUELL." In Proceedings of the International Symposium. WORLD SCIENTIFIC, 2003. http://dx.doi.org/10.1142/9789812704504_0019.

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Salgotra, R. K., and B. B. Gupta. "Genetic Analysis of Quantitative Traits in Basmati and Aromatic Rice under Intermediate Region of Himalaya." In IASTED Technology Conferences 2010. Calgary,AB,Canada: ACTAPRESS, 2010. http://dx.doi.org/10.2316/p.2010.728-032.

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"Investigation of genetic control of agriculturally important traits in common buckwheat using a combination of genetic mapping and transcriptome analysis." In Plant Genetics, Genomics, Bioinformatics, and Biotechnology. Novosibirsk ICG SB RAS 2021, 2021. http://dx.doi.org/10.18699/plantgen2021-125.

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LI, DANQING, YONGPING LIU, DEXIAN ZENG, KAIPENG ZHONG, and LINYUAN FAN. "ANALYSIS OF GENETIC EFFECTS FOR GROWTH TRAITS OF EUCALYPTUS GLOBULUS LABILL. IN A 6×6 DIALLEL DESIGN." In Proceedings of the International Symposium. WORLD SCIENTIFIC, 2003. http://dx.doi.org/10.1142/9789812704504_0018.

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Abna, Fatemeh, Faruq Golam, and Subha Bhassu. "Genetic Diversity Analysis in Different Varieties of Mungbean (Vigna radiata (L.) Wilczek) based on Quantitative Traits Using Multivariate Methods." In Annual International Conference on Advances in Biotechnology. Global Science and Technology Forum (GSTF), 2012. http://dx.doi.org/10.5176/2251-2489_biotech24.

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Салтанович, Татьяна, Людмила Анточ, and А. Дончилэ. "Оценка реакции мужского гаметофита томата на действие патогенов Alternaria Spp." In International Scientific Symposium "Plant Protection – Achievements and Prospects". Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2020. http://dx.doi.org/10.53040/9789975347204.84.

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Research objective: to identify tomato genotypes resistant to Alternaria on variability and symptoms of male gametophyte on selective backgrounds with cultural filtrate of pathogens Alternaria spp. A set of gamete breeding techniques and genetic-statistical analysis were used in the experiments. Some patterns of the variability and heritability of traits in the tomato male gametophyte have been identified on media with filtrates of pathogens. The differences in the resistance of pollen to the filtrate influence were established; the differentiation and selection of genotypes for further breeding were made. These studies can be used at different stages of the selection process.

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Davoyan, R. O., I. V. Bebyakina, E. R. Davoyan, V. A. Bibishev, L. A. Bespalova, and O. Yu Puzirnaya. "Use of synthetic form Triticum miguschovae Zhir in common wheat breeding." 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/10.33952/2542-0720-2020-5-9-10-56.

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T. miguschovae (GGAADD) was used as a “genetic bridge” to transfer valuable traits to the common wheat instead T. militina and Ae. tauschii. Lines with resistance to leaf rust, yellow rust and powdery mildew, as well as with high protein content (17–18 %) were selected. The lines with translocation Т2BL.2BS-2GL, 5BS.5BL-5GL, T6BS.6BL-6GL and substitution of chromosomes 1D(1Dt), 4D(4Dt), 5D(5Dt), 6D(6Dt) were identified. DNA analysis revealed that the lines can carry leaf rust resistance genes that are different from the known Lr39 and Lr50. Introgression lines have been successfully used in breeding. Five common winter wheat cultivars are developed.

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Kasakova, A. S., and A. G. Galayan. "METHODS OF TRANSCRIPTOMICS FOR CEREALS’ STUDY." In STATE AND DEVELOPMENT PROSPECTS OF AGRIBUSINESS. DSTU-PRINT, 2020. http://dx.doi.org/10.23947/interagro.2020.1.579-582.

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Wheat is a crop that feeds millions, and its yield is determined by economic, climatic, and genetic factors. Unfortunately, the productivity of grain in fact does not always correspond to the desired result. Transcriptomics is a universal and modern method of solving complex and topical issues facing scientists for many centuries. Analysis of the expression of genes associated with the state of rest and germination of grain in wheat embryos is of great agronomic interest, since this process is directly related to the deterioration of the quality and decrease in the yield of grain before harvest. The difficulty of isolating RNA from a small amount of tissue is an obstacle to analyzing gene expression. Difficulty isolating RNA from a small amount of tissue. The developed new methods for the analysis of transcripts in an individual family make it possible to plan the creation of cultivars of agricultural crops. crops with specified traits.

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Reports on the topic "Genetic analysis; Flies; Traits"

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Serão, Nick V. L., Oswald Matika, Steve Bishop, Bob Kemp, John Harding, Graham Plastow, and Jack C. M. Dekkers. Genetic Analysis of Reproductive Traits and Antibody Response in PRRS Infected Sows. Ames (Iowa): Iowa State University, January 2014. http://dx.doi.org/10.31274/ans_air-180814-1362.

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