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Molecular mapping of a non-host resistance gene YrpstY1 in barley (Hordeum vulgare L.) for resistance to wheat stripe rust

Author: Xinxia Sui
Author: He, Zhonghu
Author: Yaming Lu
Author: Zhenlin Wang
Author: Xianchun Xia
Year: 2010
ISSN: 0018-0661
Abstract: Cultivated barley ( Hordeum vulgare L.) is considered as a non-host or inappropriate host species for wheat stripe rust caused by Puccinia striiformis f. sp. tritici . Most barley cultivars show a broad-spectrum resistance to wheat stripe rust. To determine the genes for resistance to wheat stripe rust in barley, a cross was made between a resistant barley line Y12 and a susceptible line Y16. The two parents, F 1 and 147 BC 1 plants were tested at seedling stage with Chinese prevalent race CYR32 of Puccinia striiformis f. sp. tritici by artifi cial inoculation in greenhouse. The results indicated that Y12 possessed one dominant resistance gene to wheat stripe rust, designated YrpstY1 provisionally. A total of 388 simple sequence repeat (SSR) markers were used to map the resistance gene in Y12 using bulked segregant analysis. A linkage map, including nine SSR loci on chromosome 7H and YrpstY1 , was constructed using the BC 1 population, indicating that the resistance gene YrpstY1 is located on chromosome 7H. It is potential to transfer the resistance gene into common wheat for stripe rust resistance.
Format: PDF
Language: English
Publisher: BioMed Central
Type: Article
Region: Global
Pages: 176-182
Issue: 5
Volume: 147
DOI: 10.1111/j.1601-5223.2010.02169.x
Agrovoc: BARLEY
Agrovoc: RUSTS
Journal: Hereditas

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  • Genetic Resources
    Genetic Resources including germplasm collections, wild relatives, genotyping, genomics, and IP

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