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Genetically optimizing soybean nodulation improves yield and protein content

文献类型: 外文期刊

作者: Zhong, Xiangbin 1 ; Wang, Jie 1 ; Shi, Xiaolei 2 ; Bai, Mengyan 3 ; Yuan, Cuicui 4 ; Cai, Chenlin 1 ; Wang, Nan 4 ; Zhu, Xiaomin 1 ; Kuang, Huaqin 3 ; Wang, Xin 3 ; Su, Jiaqing 1 ; He, Xin 5 ; Liu, Xiao 6 ; Yang, Wenqiang 6 ; Yang, Chunyan 2 ; Kong, Fanjiang 3 ; Wang, Ertao 5 ; Guan, Yuefeng 3 ;

作者机构: 1.Fujian Agr & Forestry Univ, Coll Resources & Environm, Fuzhou, Peoples R China

2.Hebei Acad Agr & Forestry Sci, Inst Cereal & Oil Crops, Hebei Lab Crop Genet & Breeding, Shijiazhuang, Peoples R China

3.Guangzhou Univ, Innovat Ctr Mol Genet & Evolut, Sch Life Sci, Guangdong Prov Key Lab Plant Adaptat & Mol Design, Guangzhou, Peoples R China

4.Fujian Agr & Forestry Univ, FAFU UCR Joint Ctr Hort Biol & Metabol, Fuzhou, Peoples R China

5.Chinese Acad Sci, Inst Plant Physiol & Ecol, CAS Ctr Excellence Mol Plant Sci, New Cornerstone Sci Lab, Shanghai, Peoples R China

6.Chinese Acad Sci, Inst Bot, Photosynth Res Ctr, Key Lab Photobiol, Beijing, Peoples R China

期刊名称:NATURE PLANTS ( 影响因子:18.0; 五年影响因子:18.6 )

ISSN: 2055-026X

年卷期: 2024 年 10 卷 5 期

页码:

收录情况: SCI

摘要: Symbiotic nitrogen fixation in legume nodules requires substantial energy investment from host plants, and soybean (Glycine max (L.) supernodulation mutants show stunting and yield penalties due to overconsumption of carbon sources. We obtained soybean mutants differing in their nodulation ability, among which rhizobially induced cle1a/2a (ric1a/2a) has a moderate increase in nodule number, balanced carbon allocation, and enhanced carbon and nitrogen acquisition. In multi-year and multi-site field trials in China, two ric1a/2a lines had improved grain yield, protein content and sustained oil content, demonstrating that gene editing towards optimal nodulation improves soybean yield and quality. This study shows that optimizing soybean nodulation, rather than supernodulation, through editing improves N and C assimilation by balancing source-sink relationships. As a result, soybean yield and protein content are simultaneously increased in field conditions.

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