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A potato late blight resistance gene protects against multiple Phytophthora species by recognizing a broadly conserved RXLR-WY effector

文献类型： 外文期刊

作者： Lin, Xiao 1 ; Olave-Achury, Andrea 1 ; Heal, Robert 1 ; Pais, Marina 1 ; Witek, Kamil 1 ; Ahn, Hee-Kyung 1 ; Zhao, He 1 ; Bhanvadia, Shivani 2 ; Karki, Hari S. 1 ; Song, Tianqiao 1 ; Wu, Chih-hang 1 ; Adachi, Hiroaki 1 ; Kamoun, Sophien 1 ; Vleeshouwers, Vivianne G. A. A. 2 ; Jones, Jonathan D. G. 1 ;

作者机构： 1.Univ East Anglia, Sainsbury Lab, Norwich Res Pk, Norwich NR4, Norfolk, England

2.Wageningen Univ & Res, Wageningen UR Plant Breeding, Droevendaalsesteeg 1, NL-6708 Wageningen, Netherlands

3.Jiangsu Acad Agr Sci, Inst Plant Protect, Nanjing 210014, Peoples R China

4.Acad Sin, Inst Plant & Microbial Biol, Taipei 11529, Taiwan

5.Kyoto Univ, Grad Sch Agr, Lab Crop Evolut, Kyoto 6170001, Japan

6.Lipman Family Farms, Six Ls Farm Rd, Estero, FL 21106 USA

关键词： Rpi-amr3; AVRamr3; potato late blight; Phytophthora disease; RXLR-WY effector; Solanum americanum

期刊名称：MOLECULAR PLANT （ 影响因子：21.949； 五年影响因子：19.617 ）

ISSN： 1674-2052

年卷期： 2022 年 15 卷 9 期

页码：

收录情况： SCI

摘要： Species of the genus Phytophthora, the plant killer, cause disease and reduce yields in many crop plants. Although many Resistance to Phytophthora infestans (Rpi) genes effective against potato late blight have been cloned, few have been cloned against other Phytophthora species. Most Rpi genes encode nucleotide-binding domain, leucine-rich repeat-containing (NLR) immune receptor proteins that recognize RXLR (Arg-X-Leu-Arg) effectors. However, whether NLR proteins can recognize RXLR effectors from mul-tiple Phytophthora species has rarely been investigated. Here, we identified a new RXLR-WY effector AV-Ramr3 from P. infestans that is recognized by Rpi-amr3 from a wild Solanaceae species Solanum ameri-canum. Rpi-amr3 associates with AVRamr3 in planta. AVRamr3 is broadly conserved in many different Phytophthora species, and the recognition of AVRamr3 homologs by Rpi-amr3 activates resistance against multiple Phytophthora pathogens, including the tobacco black shank disease and cacao black pod disease pathogens P. parasitica and P. palmivora. Rpi-amr3 is thus the first characterized resistance gene that acts against P. parasitica or P. palmivora. These findings suggest a novel path to redeploy known R genes against different important plant pathogens.

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