Genome-wide association analysis on pre-harvest sprouting resistance and grain color in U.S. winter wheat.

ABSTRACT:

Background

Pre-harvest sprouting (PHS) in wheat can cause substantial reduction in grain yield and end-use quality. Grain color (GC) together with other components affect PHS resistance. Several quantitative trait loci (QTL) have been reported for PHS resistance, and two of them on chromosome 3AS (TaPHS1) and 4A have been cloned.

Methods

To determine genetic architecture of PHS and GC and genetic relationships of the two traits, a genome-wide association study (GWAS) was conducted by evaluating a panel of 185 U.S. elite breeding lines and cultivars for sprouting rates of wheat spikes and GC in both greenhouse and field experiments. The panel was genotyped using the wheat 9K and 90K single nucleotide polymorphism (SNP) arrays.

Results

Four QTL for GC on four chromosome

SUBMITTER: Lin M 

PROVIDER: S-EPMC5059910 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature