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United States Department of Agriculture

Agricultural Research Service

Research Project: Genetic Improvement of Barley and Oats for Enhanced Quality and Biotic Stress Resistance

Location: Small Grains and Potato Germplasm Research

Title: Identifying the loci that influence quantitative trait variation in oats: Lessons from human population-based GWAS

Author
item Esvelt Klos, Kathy

Submitted to: Plant and Animal Genome VX Conference Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: December 1, 2013
Publication Date: January 11, 2014
Repository URL: http://https://pag.confex.com/pag/xxii/webprogram/start.html
Citation: Esvelt Klos, K.L. 2014. Identifying the loci that influence quantitative trait variation in oats: Lessons from human population-based GWAS. Plant and Animal Genome VX Conference Abstracts. PAGXXII, Jan 11-15, 2014.

Technical Abstract: In recent years, the resources have become available to enable genome-wide genotype-phenotype association analyses in cereal crops using thousands of genetic markers measured on hundreds of lines. One open question is whether these resources are sufficient to identify the loci influencing quantitative trait variation more effectively and efficiently than through linkage analyses in bi-parental populations. Quantitative geneticists have been performing genome-wide association analyses in human population-based samples for nearly a decade. A look at these studies can illustrate issues likely to be encountered in oat GWAS; including the impacts of population structure, marker density, recombination hotspots, the allele frequency distribution, and estimated effect size. This presentation discusses these issues with specific examples drawn from human and plant studies of genotype-phenotype association.

Last Modified: 10/31/2014
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