Unraveling the genetic architecture of subtropical maize (Zea mays L.) lines to assess their utility in breeding programs.

ABSTRACT:

Background

Maize is an increasingly important food crop in southeast Asia. The elucidation of its genetic architecture, accomplished by exploring quantitative trait loci and useful alleles in various lines across numerous breeding programs, is therefore of great interest. The present study aimed to characterize subtropical maize lines using high-quality SNPs distributed throughout the genome.

Results

We genotyped a panel of 240 subtropical elite maize inbred lines and carried out linkage disequilibrium, genetic diversity, population structure, and principal component analyses on the generated SNP data. The mean SNP distance across the genome was 70 Kb. The genome had both high and low linkage disequilibrium (LD) regions; the latter were dominant in areas near the gene-rich t

SUBMITTER: Thirunavukkarasu N 

PROVIDER: S-EPMC3867671 | biostudies-literature | 2013 Dec

REPOSITORIES: biostudies-literature