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The RppC-AvrRppC NLR-effector interaction mediates the resistance to southern corn rust in maize

摘要Southern corn rust(SCR),caused by the fungal pathogen Puccinia polysora,is a major threat to maize pro-duction worldwide.Efficient breeding and deployment of resistant hybrids are key to achieving durable control of SCR.Here,we report the molecular cloning and characterization of RppC,which encodes an NLR-type immune receptor and is responsible for a major SCR resistance quantitative trait locus.Further-more,we identified the corresponding avirulence effector,AvrRppC,which is secreted by P.polysora and triggers RppC-mediated resistance.Allelic variation of AvrRppC directly determines the effectiveness of RppC-mediated resistance,indicating that monitoring of AvrRppC variants in the field can guide the rational deployment of RppC-containing hybrids in maize production.Currently,RppC is the most frequently deployed SCR resistance gene in China,and a better understanding of its mode of action is crit-ical for extending its durability.

作者 Ce Deng ^[1] April Leonard ^[2] James Cahill ^[2] Meng Lv ^[1] Yurong Li ^[2] Shawn Thatcher ^[2] Xueying Li ^[1] Xiaodi Zhao ^[1] Wenjie Du ^[1] Zheng Li ^[1] Huimin Li ^[1] Victor Llaca ^[2] Kevin Fengler ^[2] Lisa Marshall ^[2] Charlotte Harris ^[2] Girma Tabor ^[2] Zhimin Li ^[1] Zhiqiang Tian ^[1] Qinghua Yang ^[1] Yanhui Chen ^[1] Jihua Tang ^[1] Xintao Wang ^[3] Junjie Hao ^[3] Jianbing Yan ^[4] Zhibing Lai ^[4] Xiaohong Fei ^[5] Weibin Song ^[5] Jinsheng Lai ^[5] Xuecai Zhang ^[6] Guoping Shu ^[7] Yibo Wang ^[7] Yuxiao Chang ^[8] Weiling Zhu ^[9] Wei Xiong ^[10] Juan Sun ^[1] Bailin Li ^[2] Junqiang Ding ^[1] 学术成果认领

作者单位 College of Agronomy,Henan Agricultural University,Zhengzhou 450046,China;The State Key Laboratory of Wheat and Maize Crop Science and Center for Crop Genome Engineering,Henan Agricultural University,Zhengzhou 450046,China ^[1] Corteva Agriscience,Johnston,IA 50131,USA ^[2] Institute of Plant Protection,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China ^[3] National Key Laboratory of Crop Genetic Improvement,Huazhong Agricultural University,Wuhan 430070,China ^[4] State Key Laboratory of Plant Physiology and Biochemistry,National Maize Improvement Center,College of Agronomy and Biotechnology,China Agricultural University,Beijing 100193,China ^[5] International Maize and Wheat Improvement Center(CIMMYT),El Batan,56237 Texcoco,Mexico ^[6] Center of Biotechnology,Beijing Lantron Seed,Zhengzhou 450001,China ^[7] Shenzhen Branch,Guangdong Laboratory of Lingnan Modern Agriculture,Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs,Agricultural Genomics Institute at Shenzhen,Chinese Academy of Agricultural Sciences,Shenzhen 518120,China ^[8] Henan Dingyou Agricultural Science and Technology Co.,Ltd,Zhengzhou 450001,China ^[9] College of Agronomy,Henan Agricultural University,Zhengzhou 450046,China;The State Key Laboratory of Wheat and Maize Crop Science and Center for Crop Genome Engineering,Henan Agricultural University,Zhengzhou 450046,China;International Maize and Wheat Improvement Center(CIMMYT),El Batan,56237 Texcoco,Mexico ^[10]

关键词 maize Zea mays RppC AvrRppC southern corn rust SCR

栏目名称

Research Report

发布时间 2022-07-26（万方平台首次上网日期，不代表论文的发表时间）

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