Earliness traits in rapeseed (Brassica napus): SNP loci and candidate genes identified by genome-wide association analysis.

ABSTRACT: Life cycle timing is critical for yield and productivity of Brassica napus (rapeseed) cultivars grown in different environments. To facilitate breeding for earliness traits in rapeseed, SNP loci and underlying candidate genes associated with the timing of initial flowering, maturity and final flowering, as well as flowering period (FP) were investigated in two environments in a diversity panel comprising 300 B. napus inbred lines. Genome-wide association studies (GWAS) using 201,817 SNP markers previously developed from SLAF-seq (specific locus amplified fragment sequencing) revealed a total of 131 SNPs strongly linked (P < 4.96E-07) to the investigated traits. Of these 131 SNPs, 40 fell into confidence intervals or were physically adjacent to previously published flowering time QTL or SNP

SUBMITTER: Zhou Q 

PROVIDER: S-EPMC6014513 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature