Cloning southern corn rust resistant gene RppK and its cognate gene AvrRppK from Puccinia polysora
文献类型： 外文期刊
作者： Chen, Gengshen 1 ; Zhang, Bao 1 ; Ding, Junqiang 2 ; Wang, Hongze 1 ; Deng, Ce 2 ; Wang, Jiali 1 ; Yang, Qianhui 1 ; Pi, Qianyu 1 ; Zhang, Ruyang 4 ; Zhai, Haoyu 1 ; Dong, Junfei 1 ; Huang, Junshi 1 ; Hou, Jiabao 1 ; Wu, Junhua 1 ; Que, Jiamin 1 ; Zhang, Fan 1 ; Li, Wenqiang 1 ; Min, Haoxuan 1 ; Tabor, Girma 5 ; Li, Bailin 5 ; Liu, Xiangguo 6 ; Zhao, Jiuran 4 ; Yan, Jianbing 1 ; Lai, Zhibing 1 ;
作者机构： 1.Huazhong Agr Univ, Natl Key Lab Crop Genet Improvement, Wuhan 430070, Hubei, Peoples R China
2.Henan Agr Univ, Coll Agron, Zhengzhou 450002, Henan, Peoples R China
3.Shennong Lab, Zhengzhou 450002, Henan, Peoples R China
4.Beijing Acad Agr & Forestry Sci BAAFS, Maize Res Ctr, Beijing 100097, Peoples R China
5.Corteva Agrisci, Johnston, IA 50131 USA
6.Jilin Acad Agr Sci, Inst Agr Biotechnol, Changchun 130033, Jilin, Peoples R China
7.Hubei Hongshan Lab, Wuhan 430070, Hubei, Peoples R China
期刊名称：NATURE COMMUNICATIONS （ 影响因子：17.694； 五年影响因子：17.763 ）
ISSN：
年卷期： 2022 年 13 卷 1 期
页码：
收录情况： SCI
摘要： Southern corn rust (SCR) caused by Puccinia polysora is a major maize disease that can result in major yield loss. Here, the authors report the expression of a CC-NB-LRR type of R gene RppK results in SCR resistance in susceptible maize lines and it can recognize the effector AvrRppK produced by P. polysora. Broad-spectrum resistance has great values for crop breeding. However, its mechanisms are largely unknown. Here, we report the cloning of a maize NLR gene, RppK, for resistance against southern corn rust (SCR) and its cognate Avr gene, AvrRppK, from Puccinia polysora (the causal pathogen of SCR). The AvrRppK gene has no sequence variation in all examined isolates. It has high expression level during infection and can suppress pattern-triggered immunity (PTI). Further, the introgression of RppK into maize inbred lines and hybrids enhances resistance against multiple isolates of P. polysora, thereby increasing yield in the presence of SCR. Together, we show that RppK is involved in resistance against multiple P. polysora isolates and it can recognize AvrRppK, which is broadly distributed and conserved in P. polysora isolates.
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