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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 43 for “"genomic selection"”.
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Genomic selection for accelerated barley breeding
… where possible with fewer resources.<br/><br/>Genomic selection (GS) is a breeding tool that uses genome-wide marker information to make selections/predictions in a breeding program. GS uses both genotypic data and phenotypic data to assign breeding values (BVs) for a specific trait to …
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Genomic selection for high quality beef production
This thesis focuses on the implementation of genomic selection within Wagyu, a breed of cattle that is highly desired due to its propensity to accumulate marbling. Initial focus of the thesis was to investigate using genomics to breed purebred Wagyu, producing crossbreds with improved marbling …
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A stochastic simulation approach for improving response in genomic selection
… are applied to plant breeding, specifically Genomic Selection (GS).</p> <p>GS techniques allow breeders to select the best plants to make crosses by predicting, for</p> <p>example, the heights of the plants using the genotypic data at an early stage of the plant</p> <p>growth cycle, saving …
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A Multi-GPU Compute Solution for Optimized Genomic Selection Analysis
… solution for optimizing GenSel, a genetic selection analysis tool. GenSel utilizes a MCMC algorithm to perform Bayesian inference using Gibbs sampling.</p> <p>Optimizing an MCMC algorithm is a difficult problem because it is inherently sequential, containing a loop carried dependence …
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Genomic selection studies in sheep using simulation and real data
This dissertation evaluates genomic selection strategies and genotype-by-environment modeling to improve genetic gains through sustainable breeding practices in sheep. It integrates a thorough review of sheep breeding programs in Turkey, a forward-looking simulation study of genomic selection in …
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Implementing multi-trait genomic selection to improve grain milling quality in oat
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-12-01
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The role of genomic selection and advanced statistical modeling in domesticating perennial sorghum
… water scarcity, and resource limitations. Genomic prediction (GP) is a crucial tool for accelerating the selection process in breeding perennial sorghum for key domestication and perenniality traits. The goal of the research presented in this dissertation is to assess and implement the most …
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Genomic Selection and Genome-Wide Association Study in Populus trichocarpa and Pinus taeda
… some weaknesses of traditional tree breeding. Genomic Selection (GS), which involves using genome-wide markers to predict breeding values of individuals in a population, has been proposed for animal and plant breeding programs. GS enables very accurate selection decisions through estimation of …
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Evaluating long term benefits of genomic selection programs in beef cattle breeding programs in Western Canada
… was conducted to evaluate long-term benefits of genomic selection programs in natural service multi-sire breeding programs in Western Canada. A total of 24 breeding groups and 117 sires (some repeated) were followed over 6 breeding and calving years to determine the association between sire …
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Genomic selection and quantitative trait loci mapping for Fusarium head blight resistance in wheat (Triticum aestivum L.)
… could contribute to the identification of genomic regions associated with FHB resistance. In addition, markers could be used to calculate breeding values for wheat lines, for traits related to resistance disease. In the first study of this dissertation, genomic selection (GS) models were …
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Genomic selection for glume blotch resistance and milling and baking quality traits in soft red winter wheat
… are key objectives in a breeding program. Selection for milling and baking quality is critical for the acceptance of new wheat varieties to end users - millers and bakers. Fungal pathogens present a significant biotic threat to the quality and quantity of the wheat crop annually. …
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Genomic Selection, Quantitative Trait Loci and Genome-Wide Association Mapping for Spring Bread Wheat (Triticum aestivum L.) Improvement
… variation, which are used for marker assisted selection (MAS). Marker assisted selection has been successful to improve traits controlled by moderate to large effect QTL; however, it has limited application for traits controlled by many QTL with small effects. Genomic selection (GS) is …
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LEVERAGING EVOLUTION TO UNDERSTAND GENETIC LOAD IN CASSAVA (MANIHOT ESCULENTA)
… cause for these difficulties. In recent years genomic selection has been adopted as a strategy to accelerate genetic gain and quickly purge genetic load. Obtaining accurate and consistent genotype data across thousands of cassava clones is necessary to more effectively implement genomic …
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Developing Low-GN and GN-zero Winter Malt Barley for the Eastern United States
… genotyping-by-sequencing (GBS) and evaluated for genomic predictability and selection potential for GN reduction. Despite a low heritability estimate (h2 = 0.24), bi-directional genomic selection was effective (p = 0.003). Repeatability was confirmed through a second phenotyping round in fall …
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Accelerated breeding for winter wheat profitability in a wheat-soybean double-crop system
… using genetic trend analyses, multi-trait genomic prediction of total net merit, and training-set design optimization for early-stage advancement. Three questions organize the research. First, what has been the realized genetic trend for key traits over two decades of selection in the …
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Machine learning analytics for predictive breeding
<p>Prediction accuracies of genomic selection methods are affected by the quality of the phenotypic and genotypic data and by the use of appropriate analytic models in the training sets. This research focuses on the impact of data quality for ordinal traits. Ordinal scores of traits are typical for …
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Use of QTL identified in breed crosses for genetic improvement in pigs
… introgression (MAI) and marker-assisted selection (MAS). Evaluation of the effectiveness of alternate strategies for MAI and MAS were carried out using stochastic computer simulation. In general, introgression of multiple QTL and maintaining the frequency of the donor's allele at 50% …
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Three studies in marker-assisted plant breeding
… general combining ability for yield by genomic best linear unbiased prediction. We also find that parental genetic distance is negatively correlated with mid-parent heterosis and performance of progeny for most traits, including yield, in the population of study, which supports other …
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Models and methods for computer simulations as a resource in plant breeding
… and evaluated a novel method for use in genomic selection. Genomic selection procedures have proven useful in estimating breeding value and predicting phenotype with genome-wide molecular marker information. We proposed a new nonparametric method, pRKHS, which combined the features of …
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The Genomic Basis of Heterosis in High-Yielding Triploid Hybrids of Willow (Salix spp.) Bioenergy Crops
… hybrids often exhibit heterosis for yield. The genomic basis of heterosis in willow has not been well characterized, especially in high-yielding triploid hybrids. The primary objectives of this study were 1) to evaluate diverse diploid, triploid, and tetraploid families for a suite of traits …
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