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Genetic variation in GmCRP contributes to nodulation in soybean (Glycine max Merr.)

文献类型： 外文期刊

作者： Wang, Jinhui 1 ; Ma, Chao 1 ; Ma, Shengnan 1 ; Zheng, Haiyang 1 ; Tian, Huilin 1 ; Wang, Xi 1 ; Wang, Yue 1 ; Jiang, Hongwei 2 ; Wang, Jiangxu 3 ; Zhang, Zhanguo 1 ; Liu, Chunyan 1 ; Yang, Mingliang 1 ; Chen, Qingshan 1 ; Xin, Dawei 1 ;

作者机构： 1.Northeast Agr Univ, Coll Agr, Key Lab Soybean Biol, Key Lab Soybean Biol & Breeding Genet,Chinese Agr, Harbin 150030, Heilongjiang, Peoples R China

2.Jilin Acad Agr Sci, Changchun 130033, Jilin, Peoples R China

3.Heilongjiang Acad Agr Sci, Harbin 150086, Heilongjiang, Peoples R China

关键词： Soybean; Symbiosis; Effector; NopC; Natural varieties

期刊名称：CROP JOURNAL （ 影响因子：6.6； 五年影响因子：6.5 ）

ISSN： 2095-5421

年卷期： 2023 年 11 卷 2 期

页码：

收录情况： SCI

摘要： Symbiosis between soybean and rhizobia contributes to soybean yield and quality. Although secreted rhi-zobial type III effectors are known to regulate infection and promote nitrogen fixation, much about them remains unknown. Mutation of NopC, a type III effector from Sinorhizobium fredii HH103, reduced nodule numbers and dry weights in 310 soybean accessions, and expression of NopC in soybean hairy roots pro-moted symbiosis. Based on observed differences in nodule traits between Suinong 14 and Zyd 00,006 inoculated with HH103 and the NopC mutant, 11 QTL associated with rhizobia were identified in chro-mosome segment substitution lines (CSSLs) derived from Suinong 14 and Zyd 00006. Using chromosome fragment insertion, whole-genome sequencing of Suinong 14 and Zyd 00006, and qRT-PCR, Glyma.19G176300 (GmCRP) was identified as a candidate gene associated with NopC, and GmCRP was found to be induced by NopC to positively regulate nodulation. SNPs located in the regulatory regions of GmCRP influenced its expression response to NopC, with SNPs contributing to nodulation having been selected during domestication. Our findings reveal the function of a soybean gene encoding a rhizobial type III effector that contributes to symbiosis, and will facilitate the practical application of symbiotic nitrogen fixation in molecular breeding. (c) 2022 Crop Science Society of China and Institute of Crop Science, CAAS. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. This is an open access article under the CC BY-NC -ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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