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Xie Z, Yan B, Shou J, Tang J, Wang X, Zhai K, Liu J, Li Q, Luo M, Deng Y, He Z. A nucleotide-binding site-leucine-rich repeat receptor pair confers broad-spectrum disease resistance through physical association in rice. Philos Trans R Soc Lond B Biol Sci 2020; 374:20180308. [PMID: 30967012 DOI: 10.1098/rstb.2018.0308] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Rice blast caused by Magnaporthe oryzae is the most destructive fungal disease in crops, greatly threatening rice production and food security worldwide. The identification and utilization of broad-spectrum resistance genes are considered to be the most economic and effective method to control the disease. In the past decade, many blast resistance ( R) genes have been identified, which mainly encode nucleotide-binding leucine-rich repeat (NLR) receptor family and confer limited race-specific resistance to the fungal pathogen. Resistance genes conferring broad-spectrum blast resistance are still largely lacking. In this study, we carried out a map-based cloning of the new blast R locus Pizh in variety ZH11. A bacterial artificial chromosome (BAC) clone of 165 kb spanning the Pizh locus was sequenced and identified 9 NLR genes, among which only Pizh-1 and Pizh-2 were expressed. Genetic complementation experiments indicated that Pizh-1 but not Pizh-2 alone could confer blast resistance. Intriguingly, both mutations on Pizh-1 and Pizh-2 by CRISPR-Cas9 abolished the Pizh-mediated resistance. We also observed that Pizh-1-mediated resistance was partially dependent on Pizh-2. Pizh-1 and Pizh-2 form a complex of NLRs through direct interaction. This suggests that Pizh-1 may function as the executor NLR and Pizh-2 as a 'helper' NLR that shares functional redundancy with other NLRs. Our current study provides not only a good tool for rice disease resistance breeding but also deep insight into NLR association and function in plant immunity. This article is part of the theme issue 'Biotic signalling sheds light on smart pest management'.
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Affiliation(s)
- Zhen Xie
- 1 National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences , Shanghai 200032 , People's Republic of China.,2 College of Agriculture and Biotechnology, Zhejiang University , Hangzhou 310058 , People's Republic of China
| | - Bingxiao Yan
- 1 National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences , Shanghai 200032 , People's Republic of China.,3 University of the Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Jianyao Shou
- 4 Zhuji Agricultural Technology Promotion Center , Zhejiang 311800 , People's Republic of China
| | - Jun Tang
- 1 National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences , Shanghai 200032 , People's Republic of China
| | - Xin Wang
- 1 National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences , Shanghai 200032 , People's Republic of China
| | - Keran Zhai
- 1 National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences , Shanghai 200032 , People's Republic of China
| | - Jiyun Liu
- 1 National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences , Shanghai 200032 , People's Republic of China
| | - Qun Li
- 1 National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences , Shanghai 200032 , People's Republic of China
| | - Meizhong Luo
- 5 College of Life Science and Technology, Huazhong Agricultural University , Wuhan 430070 , People's Republic of China
| | - Yiwen Deng
- 1 National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences , Shanghai 200032 , People's Republic of China
| | - Zuhua He
- 1 National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences , Shanghai 200032 , People's Republic of China.,2 College of Agriculture and Biotechnology, Zhejiang University , Hangzhou 310058 , People's Republic of China
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