ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2025
Genome-wide association mapping of loci conferring all-stage and high-temperature adult-plant resistance to stripe rust in a global spring barley collection.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Identification and molecular mapping of a new Hessian fly resistance gene in the spring barley variety 'Golf'.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- Current Status and Future Direction of the High-Temperature Resistance in Wheat to Control Stripe Rust.Molecular plant pathology · 2025Review
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8 authors.
Funding
Abstract
key messageThe genome-wide association study utilizing a diverse global collection of 318 barley accessions identified 44 loci for stripe rust resistance, including 14 potentially novel loci. Stripe rust is an important disease of barley in temperate regions worldwide. Identification and genetic characterization of stripe rust resistance are essential for development and deployment of durable resistance in barley cultivars. A total of 318 spring barley accessions from a global barley collection were evaluated for resistance to the stripe rust pathogen Puccinia striiformis f. sp. hordei (Psh) at the seedling stage in the greenhouse (4-20 °C) using five Psh races (PSH-33, PSH-48, PSH-72, PSH-117 and PSH-118) and at the adult-plant stage in the greenhouse under a high-temperature profile (15-25 °C) and in four field environments in Washington, USA. The frequencies of resistant accessions ranged from 15 to 54% at the seedling stage and 47-76% at the adult-plant stage. Genome-wide association analysis using 6332 markers identified 60 significant SNPs corresponding to 44 loci for stripe rust resistance. These loci include 22 all-stage resistance (ASR) loci and 22 high-temperature adult-plant resistance (HTAP) loci, distributed across all seven barley chromosomes. Three ASR loci and eleven HTAP loci are potentially novel. Five ASR loci (QRpsh_1H.3, QRpsh_3H.1, QRpsh_5H.5, QRpsh_5H.6 and QRpsh_7H.4) and five HTAP resistance loci (QRpsh_1H.4, QRpsh_3H.2, QRpsh_4H.3, QRpsh_5H.4 and QRpsh_7H.2) are major-effect loci, each explaining over 10% of the phenotypic variation. PCR Allele Competitive Extension markers were developed for eight broad-spectrum ASR loci, which may facilitate resistance screening and targeted locus introgression in barley breeding programs. The genetic resources developed in this study should be valuable for breeding efforts aimed at enhancing resistance to stripe rust in barley cultivars.
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