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- Title
Development and characterization of a new 1BL.1RS translocation line with resistance to stripe rust and powdery mildew of wheat.
- Authors
Tian-Heng Ren; Zu-Jun Yang; Ben-Ju Yan; Huai-Qiong Zhang; Shu-Lan Fu; Zheng-Long Ren
- Abstract
The 1BL.1RS wheat-rye translocation from Petkus rye has contributed substantially to the world wheat production. However, following the breakdown of disease resistance genes in 1RS, its importance for wheat improvement decreased. We have developed a new 1BL.1RS line, R14, by means of crossing rye inbred line L155, selected from Petkus rye to several wheat cultivars. One new gene each, for stripe rust and powdery mildew resistance, located on 1RS of the line R14, are tentatively named YrCn17 and PmCn17. YrCn17 and PmCn17 confer resistance to Puccinia striiformis f. sp. tritici pathotypes that are virulent on Yr9, and Blumeria graminis f. sp. tritici pathotypes virulent on Pm8. These two new resistances, YrCn17 and PmCn17, are now available for wheat improvement programs. The present study indicates that rye cultivars may carry yet untapped variations as potential sources of resistance.
- Subjects
DISEASE resistance of plants; CHROMOSOMAL translocation; PUCCINIA striiformis; WHEAT varieties; RYE
- Publication
Euphytica, 2009, Vol 169, Issue 2, p207
- ISSN
0014-2336
- Publication type
Article
- DOI
10.1007/s10681-009-9924-5