| Literature DB >> 33452487 |
Bao Zhang1,2, Mengdi Wang1,2, Yifang Sun3, Peng Zhao3, Chang Liu1,2, Ke Qing1,2, Xiaotong Hu1,2, Zhedong Zhong3, Jialong Cheng3, Haijiao Wang2, Yaqi Peng2, Jiajia Shi1,2, Lili Zhuang1,2, Si Du3, Miao He1,2, Hui Wu3, Min Liu1, Shengcai Chen1,2, Hong Wang1, Xu Chen1,2, Wei Fan1,2, Kewei Tian1,2, Yin Wang1, Qiang Chen4, Shixiang Wang1, Faming Dong1,5, Chunyan Yang4, Mengchen Zhang4, Qijian Song5, Youguo Li6,7, Xuelu Wang8.
Abstract
Symbiosis between soybean (Glycine max) and rhizobia is essential for efficient nitrogen fixation. Rhizobial effectors secreted through the type-III secretion system are key for mediating the interactions between plants and rhizobia, but the molecular mechanism remains largely unknown. Here, our genome-wide association study for nodule number identified G. max Nodule Number Locus 1 (GmNNL1), which encodes a new R protein. GmNNL1 directly interacts with the nodulation outer protein P (NopP) effector from Bradyrhizobium USDA110 to trigger immunity and inhibit nodulation through root hair infection. The insertion of a 179 bp short interspersed nuclear element (SINE)-like transposon into GmNNL1 leads to the loss of function of GmNNL1, enabling bradyrhizobia to successfully nodulate soybeans through the root hair infection route and enhancing nitrogen fixation. Our findings provide important insights into the coevolution of soybean-bradyrhizobia compatibility and offer a way to design new legume-rhizobia interactions for efficient symbiotic nitrogen fixation.Entities:
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Year: 2021 PMID： 33452487 DOI： 10.1038/s41477-020-00832-7
Source DB: PubMed Journal: Nat Plants ISSN： 2055-0278 Impact factor: 15.793