Development and characterization of novel wheat-rye 1RS•1BL translocation lines with high resistance to Puccinia striiformis f. sp. tritici
Development and characterization of novel wheat-rye 1RS•1BL translocation lines with high resistance to Puccinia striiformis f. sp. tritici
复制标题
高抗条锈菌的新型小麦-黑麦 1RS™1BL 易位系的开发和鉴定。
DOI：
10.1094/phyto-07-21-0313-r
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发表时间：
2022
期刊：
影响因子：
3.2
通讯作者：
Li Zhi
中科院分区：
文献类型：
--
作者：
Ren Tianheng;Jiang Qing;Sun Zixin;Ren Zhenglong;Tan Feiquan;Yang Wenyi;Li Zhi
Wheat-rye 1RS·1BL translocations from ‘Petkus’ rye have contributed substantially to wheat production worldwide with their great disease resistance and yield traits. However, the resistance genes on the 1RS chromosomes have completely lost their resistance to newly emerged pathogens. Rye could widen the variation of 1RS as a naturally cross-pollinated related species of wheat. In this study, we developed three new 1RS·1BL translocation lines by crossing rye inbred line BL1, selected from Chinese landrace rye Baili, with wheat cultivar Mianyang11. These three new translocation lines exhibited high resistance to the most virulent and frequently occurring stripe rust pathotypes and showed high resistance in the field, where stripe rust outbreaks have been most severe in China. One new gene for stripe rust resistance, located on 1RS of the new translocation lines, is tentatively namedYrRt1054.YrRt1054confers resistance toPuccinia striiformisf. sp.triticipathotypes that are virulent towardYr9andYrCn17. This new resistance gene,YrRt1054, is available for wheat improvement programs. The present study indicated that rye cultivars may carry additional untapped variation as potential sources of resistance.
