Validation and marker-assisted selection of DArT-genomic regions associated with wheat yield-related traits under normal and drought conditions.

ABSTRACT: Quantitative trait loci (QTL) is one of the most important steps in marker-assisted selection. Few studies have validated quantitative trait loci for marker-assisted selection of yield traits under drought stress conditions in wheat. A set of 138 highly diverse wheat genotypes were tested under normal and drought stress conditions for 2 years. Plant height, heading date, spike length, grain number per spike, grain yield per spike, and 1000-kernel weight were scored. High genetic variation was found among genotypes in all traits scored under both conditions in the 2 years. The same panel was genotyped using a diversity-array technology (DArT) marker, and a genome-wide association study was performed to find alleles associated with yield traits under all conditions. A set of 191 significant

SUBMITTER: Hashem M 

PROVIDER: S-EPMC10245129 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature