NDLI: A comparison of polymorphism information content and mean of transformed kinships as criteria for selecting informative subsets of barley (Hordeum vulgare L. s. l.) from the USDA Barley Core Collection

Content Provider	Springer Nature Link
Author	Graebner, Ryan C. Hayes, Patrick M. Hagerty, Christina H. Cuesta Marcos, Alfonso
Copyright Year	2015
Abstract	Recent advances in genetic technologies have given researchers the ability to characterize genetic marker data for large germplasm collections. While some studies are able to capitalize on entire germplasm collections, others, especially those that focus on traits that are difficult to phenotype, instead focus on a subset of the collection. Typically, subsets are selected using phenotypic or geographic data. One major hurdle in identifying favorable subsets is selecting a criterion that can be used to quantify the value of a subset. This study compares two such criteria, polymorphism information content, and a new criterion based on kinship matrices, which will be called the mean of transformed kinships. These criteria were explored in terms of their ability to select subsets that are favorable for genome wide association studies, and in their ability to select subsets that contain a high number of rare phenotypes. Using phenotypic and genotypic data that has been amassed from the USDA Barley Core Collection, evidence was found to support the hypotheses that subsets based on the mean of transformed kinships were well-suited to select subsets intended for genome-wide association studies, but the same was not found for polymorphism information content. Inversely, evidence was found to support the hypothesis that subsets based on polymorphism information content were well-suited to select subsets intended for rare-phenotype discovery, but the same was not found for subsets selected using the mean of transformed kinships criterion. Tools to select subsets using these two criteria have been released in the R package “GeneticSubsetter.”
Starting Page	477
Ending Page	482
Page Count	6
File Format	PDF
ISSN	09259864
Journal	Genetic Resources and Crop Evolution
Volume Number	63
Issue Number	3
e-ISSN	15735109
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-05-20
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Barley Germplasm GWAS Hordeum vulgare MTK PIC Rare phenotypes Subset Plant Sciences Plant Systematics/Taxonomy/Biogeography Plant Genetics & Genomics Plant Physiology Agriculture
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science Ecology, Evolution, Behavior and Systematics Agronomy and Crop Science

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