Genome-wide association study reveals new loci for yield-related traits in Sichuan wheat germplasm under stripe rust stress.

ABSTRACT:

Background

As one of the most important food crops in the world, increasing wheat (Triticum aestivum L.) yield is an urgent task for global food security under the continuous threat of stripe rust (caused by Puccinia striiformis f. sp. tritici) in many regions of the world. Molecular marker-assisted breeding is one of the most efficient ways to increase yield. Here, we identified loci associated to multi-environmental yield-related traits under stripe rust stress in 244 wheat accessions from Sichuan Province through genome-wide association study (GWAS) using 44,059 polymorphic markers from the 55 K single nucleotide polymorphism (SNP) chip.

Results

A total of 13 stable quantitative trait loci (QTLs) were found to be highly associating to yield-related traits, including 6 for

SUBMITTER: Ye X 

PROVIDER: S-EPMC6688255 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature