文献类型： 外文期刊
作者： Li, Miaomiao 1 ; Dong, Lingli 1 ; Li, Beibei 1 ; Wang, Zhengzhong 3 ; Xie, Jingzhong 1 ; Qiu, Dan 4 ; Li, Yahui 4 ; Shi, 1 ;
作者机构： 1.Chinese Acad Sci, Innovat Acad Seed Design, Inst Genet & Dev Biol, State Key Lab Plant Cell & Chromosome Engn, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.China Agr Univ, Beijing 100193, Peoples R China
4.Chinese Acad Agr Sci, Inst Crop Sci, Natl Engn Lab Crop Mol Breeding, Beijing 100081, Peoples R China
5.Hubei Acad Agr Sci, Inst Plant Protect & Soil Sci, Wuhan 430064, Hubei, Peoples R China
6.Hebei Gaoyi Seeds Farm, Gaoyi 051330, Hebei, Peoples R China
7.Beijing Dabeinong Technol Grp Co Ltd, Beijing 100080, Peoples R China
8.Univ Calif Davis, Dept Plant Sci, Davis, CA 95616 USA
9.Univ Haifa, Inst Evolut, IL-3498838 Har Hakarmel, Israel
关键词： Blumeria graminisf; sp; tritici; coiled-coil-nucleotide-binding site-leucine-rich repeat (CC-NBS-LRR); Pm41; positional cloning; Triticum turgidumssp; dicoccoides
期刊名称：NEW PHYTOLOGIST （ 影响因子：10.151； 五年影响因子：10.475 ）
ISSN： 0028-646X
年卷期： 2020 年 228 卷 3 期
页码：
收录情况： SCI
摘要： Powdery mildew, a fungal disease caused byBlumeria graminisf. sp.tritici(Bgt), has a serious impact on wheat production. Loss of resistance in cultivars prompts a continuing search for new sources of resistance. Wild emmer wheat (Triticum turgidumssp.dicoccoides, WEW), the progenitor of both modern tetraploid and hexaploid wheats, harbors many powdery mildew resistance genes. We report here the positional cloning and functional characterization ofPm41, a powdery mildew resistance gene derived from WEW, which encodes a coiled-coil, nucleotide-binding site and leucine-rich repeat protein (CNL). Mutagenesis and stable genetic transformation confirmed the function ofPm41againstBgtinfection in wheat. We demonstrated thatPm41was present at a very low frequency (1.81%) only in southern WEW populations. It was absent in other WEW populations, domesticated emmer, durum, and common wheat, suggesting that the ancestralPm41was restricted to its place of origin and was not incorporated into domesticated wheat. Our findings emphasize the importance of conservation and exploitation of the primary WEW gene pool, as a valuable resource for discovery of resistance genes for improvement of modern wheat cultivars.
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