Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 56 for “"quantitative traits"”.
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Effects of nutritional plans and genetic groups on quantitative traits of pigs
… in expression of performance and meat quality traits, mainly when variations in deposition of lean and fat tissue rates are observed. These variations may affect genes expression profile that acts in metabolic or hormonal pathways of meat quality related traits. In this work, we aimed to …
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Empirical Evaluation of Marker -Assisted Selection for Improving Quantitative Traits in Sweet Corn
Results generated from this study suggest that incorporating DNA markers to traditional breeding programs can expedite selection progress and reduce costs. Also, data suggests that beneficial QTL identified in one population can exert similar effects in other genetic backgrounds.
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The Natural and Orthogonal Interaction (Noia) Models For Quantitative Traits (Qts) and Complex Diseases
… effect detections for human complex diseases and quantitative traits. It includes three sections: (1) generalizing the Natural and Orthogonal interaction (NOIA) model for the coding technique originally developed for gene-gene (GxG) interaction and also to reduced models; (2) developing a novel …
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A maximum likelihood estimate of dizygotic cotwin genetic similarity: a genetic analysis of quantitative traits
This document only includes an excerpt of the corresponding thesis or dissertation. To request a digital scan of the full text, please contact the Ruth Lilly Medical Library's Interlibrary Loan Department (rlmlill@iu.edu).
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Novel strategies for genomic and phenomic investigations of quantitative traits in maize (Zea mays L.)
… relationships of agronomically important quantitative traits of maize, they promise to increase the efficiency of plant breeding solutions. Root system architecture (RSA) plays important roles the adaptation of crops to the environments in which they are grown, but the genetic basis of RSA …
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Genetic Effects of X-Irradiation on Quantitative Traits in Mice as Estimated From a Diallel Cross
Made available in DSpace on 2014-12-10T17:37:51Z (GMT). No. of bitstreams: 1 6808222.pdf: 4365704 bytes, checksum: 13c84c69a96158c5a0d05b6040ec3721 (MD5) Previous issue date: 1967
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The use of microsatellites as a surrogate for quantitative trait variation in conservation
… subject to natural selection. Such fitness traits are often quantitative, i.e. are the result of a suite of loci, and are continuously variable. Microsatellite markers are a popular method of determining the level of variation present in a species’ genome. The assumption is made that …
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Mapping Genes for Complex Traits: Obesity, Diabetes, Hypertension, and Dyslipidemia on the Pacific Island of Kosrae
… the suggestions are to analyze the underlying quantitative traits with covariate corrections in large extended pedigrees with multipoint analysis. This is virtually impossible to do with the current linkage programs, due to the computation difficulties of exactly calculating every possibility. …
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Genomic selection for glume blotch resistance and milling and baking quality traits in soft red winter wheat
… offers a promising avenue for the improvement of quantitative traits, especially those difficult to improve through traditional breeding methods. GS is a statistical genomics tool that combines all molecular marker information for an individual to calculate genomic estimated breeding values …
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Incorporating molecular markers into applied maize breeding
… established between these markers and different quantitative traits. Comparisons were made between marker-trait associations in diallel, testcross, and line per se data sets, and also between marker assisted selection (MAS) and conventional early generation testcross selection.
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Genetics of Eating Disorders: a candidate gene and a genome-wide association approach
… other psychiatric disorders, as well as complex traits such as human intelligence, height, and body mass index. Power to detect genetic risk variants with small effect sizes could be increased by larger samples sizes, and by focussing on disease related quantitative traits rather than diagnoses. …
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DISSECTING THE POLYGENIC LANDSCAPE OF HUMAN COMPLEX TRAITS AND DISEASES IN A SOUTHERN ITALIAN COHORT
Complex traits and diseases are shaped by the combined effects of common and rare genetic variants, yet their contribution to risk is still poorly characterised in Southern European populations. This thesis addresses this gap by analysing the genetic architecture of traits and diseases in Italy, …
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Genomic Selection, Quantitative Trait Loci and Genome-Wide Association Mapping for Spring Bread Wheat (Triticum aestivum L.) Improvement
… to identify and characterize genes that control quantitative traits. Two of the most commonly used methods to dissect complex traits in plants are linkage analysis and association mapping. These methods are used to identify markers associated with quantitative trait loci (QTL) that underlie trait …
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Genetic and Sex Steroid Hormone Contributions to the Sexual Dimorphism in Murine Experimental Allergic Encephalomyelitis
… in disease. We also found that of the many quantitative trait loci (QTL) identified to date, genetic linkages to mouse chromosomes 7 and 11 were strongly associated with susceptibility to EAE. Further, the role of sex steroid hormones and parent-of-origin effects were studied through the use …
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Role of PARK2Gene in Maintenance of Pancreatic Beta Cell Functions
… genes with glucose- and insulin-related quantitative traits in the Korean study cohort (7,551 subjects), I found that two SNPs, rs10455889 and rs9365294, in the PARK2 gene encoding an E3 ubiquitin-protein ligase (parkin) were significantly associated with fasting plasma glucose levels and …
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Machine learning analytics for predictive breeding
… on the impact of data quality for ordinal traits. Ordinal scores of traits are typical for various types of stress tolerance and resistance. Established spatial models developed for continuous quantitative traits were unknown whether they can effectively adjust the spatial autocorrelation …
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Systematics of Eastern North American Bracken Fern
… used alone or in conjunction with some of the quantitative traits. All qualitative characters differed significantly between the two taxa. No perceptible geographic pattern of variation was observed. Morphological distinctiveness was maintained even in those localities where both taxa were …
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Identification of genomic factors using family-based association studies
… for detecting genetic associations of complex traits. However, it is well known that spurious associations could arise from statistical analysis without proper consideration of genetic relatedness of samples. Many methods have been proposed to guard against these spurious associations. Here we …
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Genetic variability in Douglas-fir based on molecular genetic markers and morphological traits
… at the population level and by evaluation of quantitative traits in parent trees. Genetic variability in the natural populations of Douglas-fir in B.C. selected from three geographic regions (coastal, transitional, and interior) was assessed by analyzing restriction fragment length …
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The Search for Modifiers of the Maze Gametophyte Factor Ga1-s and Quantitative Trait Polymorphisms Emerging from Doubled-Haploid Maize Lines
… to demonstrate the heritable polymorphism of the quantitative traits emerged from the descendants of a single doubled-haploid maize plant. Regarding the QTL mapping of the modifiers of the maize gametophyte factor; two maize lines had been identified that are polymorphic to B73 relative to …
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