Analysis of genetic diversity and genome-wide association study for drought tolerance related traits in Iranian bread wheat.

ABSTRACT:

Background

Drought is most likely the most significant abiotic stress affecting wheat yield. The discovery of drought-tolerant genotypes is a promising strategy for dealing with the world's rapidly diminishing water resources and growing population. A genome-wide association study (GWAS) was conducted on 298 Iranian bread wheat landraces and cultivars to investigate the genetic basis of yield, yield components, and drought tolerance indices in two cropping seasons (2018-2019 and 2019-2020) under rainfed and well-watered environments.

Results

A heatmap display of hierarchical clustering divided cultivars and landraces into four categories, with high-yielding and drought-tolerant genotypes clustering in the same group. The results of the principal component analysis (PCA) demo

SUBMITTER: Rabieyan E 

PROVIDER: S-EPMC10503013 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature