Linkage disequilibrium and genome-wide association mapping in tetraploid wheat (Triticum turgidum L.).

ABSTRACT: Association mapping is a powerful tool for the identification of quantitative trait loci through the exploitation of the differential decay of linkage disequilibrium (LD) between marker loci and genes of interest in natural and domesticated populations. Using a sample of 230 tetraploid wheat lines (Triticum turgidum ssp), which included naked and hulled accessions, we analysed the pattern of LD considering 26 simple sequence repeats and 970 mostly mapped diversity array technology loci. In addition, to validate the potential for association mapping in durum wheat, we evaluated the same genotypes for plant height, heading date, protein content, and thousand-kernel weight. Molecular and phenotypic data were used to: (i) investigate the genetic and phenotypic diversity; (ii) study the dynamic

SUBMITTER: Laido G 

PROVIDER: S-EPMC3997356 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature