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ARS Home » Pacific West Area » Pullman, Washington » WHGQ » Research » Publications at this Location » Publication #402264
Research Project: Enhancing Control of Stripe Rusts of Cereal Crops

Location: Wheat Health, Genetics, and Quality Research

Title: Development of resources for control of stripe rust on wheat and barley in the United States

Author
item Chen, Xianming
item WANG, MEINAN - Washington State University
item Evans, Conrad

Submitted to: International Congress of Plant Pathology Abstracts and Proceedings
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 5/9/2023
Publication Date: 8/15/2023
Citation: Chen, X., Wang, M., Evans, C.K. 2023. Development of resources for control of stripe rust on wheat and barley in the United States. International Congress of Plant Pathology Abstracts and Proceedings. 909. P41-024.

Interpretive Summary:

Technical Abstract: Stripe rust, caused by Puccinia striiformis, is one of the most destructive diseases of cereals worldwide. To control the disease on a yearly basis, potential yield losses are predicted before stripe rust development based on weather data, field surveys are conducted during the crop season, and recommendations are made for implementing appropriate control measures for individual cultivars based on the yield loss prediction, field surveys, and cultivar resistance. For improving control of stripe rust, various studies have been conducted for new knowledges of virulence, genomics, and population genetics of the pathogen, epidemiology of the disease, host resistance, and measures for integrated control. Races of the pathogen have been identified using a set of differentials, and selected races are used in greenhouse tests, together with field tests, to screen wheat germplasm and breeding lines for developing new resistant cultivars. SSR, SNP, and KASP markers have been developed for monitoring the pathogen populations. To discover more genes for resistance to stripe rust, bi-parental populations and assembled panels of wheat germplasm have been studied using QTL mapping and GWAS approaches, respectively. KASP markers have been developed for new resistance genes, and new wheat germplasm lines have been developed for resistance genes and combinations of genes for more efficiently use in breeding programs.