Population structure and genetic diversity in a commercial maize breeding program assessed with SSR and SNP markers.

ABSTRACT: Information about the genetic diversity and population structure in elite breeding material is of fundamental importance for the improvement of crops. The objectives of our study were to (a) examine the population structure and the genetic diversity in elite maize germplasm based on simple sequence repeat (SSR) markers, (b) compare these results with those obtained from single nucleotide polymorphism (SNP) markers, and (c) compare the coancestry coefficient calculated from pedigree records with genetic distance estimates calculated from SSR and SNP markers. Our study was based on 1,537 elite maize inbred lines genotyped with 359 SSR and 8,244 SNP markers. The average number of alleles per locus, of group specific alleles, and the gene diversity (D) were higher for SSRs than for SNPs. Modif

SUBMITTER: Van Inghelandt D 

PROVIDER: S-EPMC2854351 | biostudies-literature | 2010 May

REPOSITORIES: biostudies-literature