Characterization of polyploid wheat genomic diversity using a high-density 90,000 single nucleotide polymorphism array.

ABSTRACT: High-density single nucleotide polymorphism (SNP) genotyping arrays are a powerful tool for studying genomic patterns of diversity, inferring ancestral relationships between individuals in populations and studying marker-trait associations in mapping experiments. We developed a genotyping array including about 90,000 gene-associated SNPs and used it to characterize genetic variation in allohexaploid and allotetraploid wheat populations. The array includes a significant fraction of common genome-wide distributed SNPs that are represented in populations of diverse geographical origin. We used density-based spatial clustering algorithms to enable high-throughput genotype calling in complex data sets obtained for polyploid wheat. We show that these model-free clustering algorithms provide accu

SUBMITTER: Wang S 

PROVIDER: S-EPMC4265271 | biostudies-literature | 2014 Aug

REPOSITORIES: biostudies-literature