Exploring genomic loci and candidate genes associated with drought tolerance indices in spring wheat evaluated under two levels of drought.

ABSTRACT:

Background

Wheat is a major global crop, and increasing its productivity is essential to meet the growing population demand. However limited water resources is the primary constraint. This study aimed to identify genetic factors associated with drought tolerance using a diverse panel of 287 wheat genotypes evaluated under well-watered and drought-stressed conditions. Water Use Efficiency (WUE) and Grain Yield (GY), along with drought tolerance indices, were assessed. A genome-wide association study (GWAS) using 26,814 high-density SNP markers identified loci linked to these traits, with 768 SNPs showing significant associations. Additionally, genomic selection (GS) was performed using the rrBLUP model to predict trait performance across environments.

Results

Among the 768 si

SUBMITTER: Mosalam M 

PROVIDER: S-EPMC11959823 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature