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GrainGenes Reference Report: PDS-99-508

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Reference
PDS-99-508
Title
Yr60, a gene conferring moderate resistance to stripe rust in wheat
Journal
Plant Disease
Year
2015
Volume
99
Pages
508-511
Author
Herrera-Foessel SA
[ Show all 6 ]
Abstract
Stripe rust, caused by Puccinia striiformis f. sp. tritici W., is a devastating disease of wheat worldwide. A new stripe rust resistance gene with moderate seedling and adult plant resistance was mapped using an F5 recombinant inbred line (RIL) population developed from the cross of the resistant parent Almop with the susceptible parent Avocet. The parents and RILs were phenotyped for seedling stripe rust response variation in a greenhouse and in field trials at Toluca, Mexico for 2 years. Almop showed moderate levels of resistance at both seedling and adult plant stages compared with the highly susceptible response of Avocet. The distribution of homozygous resistant, homozygous susceptible, and segregating RILs conformed to segregation at a single locus. Seedlings and adult plant responses were correlated, indicating that the same gene conferred resistance at both stages. A bulk segregant analysis approach with widely distributed simple sequence repeat (SSR) markers mapped the resistance gene to the distal region of the long arm of chromosome 4A. The SSR marker wmc776 cosegregated with this gene, whereas markers wmc219 and wmc313 were tightly linked and both located at 0.6 centimorgans. The resistance locus was designated Yr60.
External Databases
http://apsjournals.apsnet.org/doi/10.1094/PDIS-08-14-0796-RE
PubMed: 22562146
Locus
Xsun104
Yr60
Summarized in
ReferenceMAS Wheat. Bringing Genomics to the Wheat Fields. Disease Resistance. Stripe Rust Resistance. Yr60 MAS Wheat. Marker Assisted Selection in Wheat.