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MG1 interacts with a protease inhibitor and confers resistance to rice root-knot nematode

文献类型： 外文期刊

作者： Wang, Xiaomin 1 ; Cheng, Rui 1 ; Xu, Daochao 1 ; Huang, Renliang 2 ; Li, Haoxing 3 ; Jin, Liang 1 ; Wu, Yufeng 4 ; Tang, Jiuyou 5 ; Sun, Changhui 6 ; Peng, Deliang 7 ; Chu, Chengcai 5 ; Guo, Xiaoli 1 ;

作者机构： 1.Huazhong Agr Univ, Coll Plant Sci & Technol, State Key Lab Agr Microbiol, Wuhan 430070, Peoples R China

2.Jiangxi Acad Agr Sci, Nanchang Subcenter Rice Natl Engn Lab, Rice Res Inst, Key Lab Rice Physiol & Genet Jiangxi Prov, Nanchang 330200, Jiangxi, Peoples R China

3.Huazhong Agr Univ, Coll Life Sci & Technol, State Key Lab Agr Microbiol, Wuhan 430070, Peoples R China

4.Nanjing Agr Univ, Acad Adv Interdisciplinary Studies, Bioinformat Ctr, State Key Lab Crop Genet & Germplasm Enhancement, Nanjing 210095, Peoples R China

5.Chinese Acad Sci, Inst Genet & Dev Biol, Natl Ctr Plant Gene Res Beijing, State Key Lab Plant Genom, Beijing 100101, Peoples R China

6.Sichuan Agr Univ, Rice Res Inst, State Key Lab Crop Gene Explorat & Utilizat South, Chengdu 625014, Peoples R China

7.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China

期刊名称：NATURE COMMUNICATIONS （ 影响因子：16.6； 五年影响因子：17.0 ）

ISSN：

年卷期： 2023 年 14 卷 1 期

页码：

收录情况： SCI

摘要： The rice root-knot nematode (Meloidogyne graminicola) is one of the most destructive pests threatening rice (Oryza sativa L.) production in Asia; however, no rice resistance genes have been cloned. Here, we demonstrate that M. GRAMINICOLA-RESISTANCE GENE 1 (MG1), an R gene highly expressed at the site of nematode invasion, determines resistance against the nematode in several rice varieties. Introgressing MG1 into susceptible varieties increases resistance comparable to resistant varieties, for which the leucine-rich repeat domain is critical for recognizing root-knot nematode invasion. We also report transcriptome and cytological changes that are correlated with a rapid and robust response during the incompatible interaction that occurs in resistant rice upon nematode invasion. Furthermore, we identified a putative protease inhibitor that directly interacts with MG1 during MG1-mediated resistance. Our findings provide insight into the molecular basis of nematode resistance as well as valuable resources for developing rice varieties with improved nematode resistance.

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