Identification of novel marker-trait associations for agronomic traits in bread wheat under WANA environments through GWAS.

ABSTRACT: Bread wheat (Triticum aestivum L.) is a primary staple crop globally and holds particular significance in the West Asia and North Africa region, where it plays a central role in food security and dietary intake. However, rising temperatures, decreased precipitation, and other climate-related stresses increasingly threaten local production. Understanding the genetic basis of agronomic traits is essential for developing high-yielding wheat varieties under harsh conditions. In this study, 191 spring bread wheat genotypes developed by ICARDA for drought and heat tolerance were evaluated across seven environments in Morocco, Sudan, Egypt, and Lebanon for five key agronomic traits. A genome-wide association study using 12,954 SNPs identified 37 significant marker-trait associations (MTAs). The h

SUBMITTER: Henkrar F 

PROVIDER: S-EPMC12334036 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature