Genome-wide association study identifies QTL and candidate genes for grain size and weight in a Triticum turgidum collection.

ABSTRACT: Wheat breeders are constantly looking for genes and alleles that increase grain yield. One key strategy is finding new genetic resources in the wild and domesticated gene pools of related species with genes affecting grain size. This study explored a natural population of Triticum turgidum (L.) phenotyped for grain weight and size-related traits in three field trials and genotyped with single nucleotide polymorphism markers spread across the entire genome. The genome-wide association study analysis identified 39 quantitative trait loci (QTL) for 1000-kernel weight, grain length, grain width, grain area, and grain aspect consistent in at least two and across environments. Interestingly, 23 QTL for grain-related traits were grouped in nine QTL clusters located on chromosomes 1A, 1B, 2B, 3B,

SUBMITTER: Mangini G 

PROVIDER: S-EPMC11771687 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature