Population structure and genome-wide association analysis for frost tolerance in oat using continuous SNP array signal intensity ratios.

ABSTRACT:

Key message

Infinium SNP data analysed as continuous intensity ratios enabled associating genotypic and phenotypic data from heterogeneous oat samples, showing that association mapping for frost tolerance is a feasible option. Oat is sensitive to freezing temperatures, which restricts the cultivation of fall-sown or winter oats to regions with milder winters. Fall-sown oats have a longer growth cycle, mature earlier, and have a higher productivity than spring-sown oats, therefore improving frost tolerance is an important goal in oat breeding. Our aim was to test the effectiveness of a Genome-Wide Association Study (GWAS) for mapping QTLs related to frost tolerance, using an approach that tolerates continuously distributed signals from SNPs in bulked samples from heterogeneous acces

SUBMITTER: Tumino G 

PROVIDER: S-EPMC4983288 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature