Elucidation of the genetic basis of variation in flowering time in Brassica napus via genome-wide association studies and gene coexpression analysis.

ABSTRACT:

Background

An optimal flowering time of Brassica napus L. (B. napus) plants leads to greater yield stability across multiple growing conditions and is therefore highly important for plant breeders.

Results

A genome-wide association study was performed for flowering time (FT) using a natural population comprising 157 inbred lines of rapeseed. A total of 126 associations between single nucleotide polymorphisms (SNPs) and the flowering time trait were identified with a P value < 1e-5, resulting in the identification of 12 QTLs named qFT1 to qFT12. Using transcripts of 205 genes in 12 QTL intervals and 922 homologs of known genes from Arabidopsis, we developed a gene coexpression network for flowering time in rapeseed and prioritized candidate genes in 12 QTL intervals. Furtherm

SUBMITTER: Dong H 

PROVIDER: S-EPMC11917099 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature