Unveiling the genetic architecture of stripe rust resistance in wheat: a region-specific GWAS in Xinjiang, China.

ABSTRACT: Wheat stripe rust is a fungal disease that decreases wheat yield and quality. In this study, 300 winter wheat cultivars (lines) from different regions were infected with stripe rust and analyzed in terms of disease severity and infection type at the seedling and adult-plant stages. Additionally, a genome-wide association study was performed using the wheat 90 K SNP chip. Sixteen accessions exhibited all-stage resistance to the prevalent Pst races CYR32 and CYR34. Moreover, the enriched compressed mixed linear model detected 261 marker-trait associations at the seedling and adult-plant stages; these markers were located on chromosomes 1A, 1B, 2A, 2B, 2D, 3A, 3D, 4B, 5A, 5B, 5D, 6A, 6B, 7A, and 7B. By combining this finding with a linkage disequilibrium decay distance of 1.72 Mb, 20 and 12 q

SUBMITTER: Zhang F 

PROVIDER: S-EPMC12858584 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature