Natural variation of MS2 confers male fertility and drives hybrid breeding in soybean

文献类型： 外文期刊

第一作者： Fang, Xiaolong

作者： Fang, Xiaolong;Feng, Xiangchi;Sun, Xiaoyuan;Zhou, Minghui;Sui, Yi;Liu, Baohui;Kong, Fanjiang;Li, Meina;Yang, Xiangdong;Yang, Xulei;Lin, Chunjing;Zhao, Limei;Zhang, Chunbao;Li, Qing;Xu, Jie

作者机构：

关键词： heterosis; male sterility; soybean; pollen wall

期刊名称：PLANT BIOTECHNOLOGY JOURNAL （ 影响因子：13.8； 五年影响因子：13.2 ）

ISSN： 1467-7644

年卷期： 2023 年

页码：

收录情况： SCI

摘要： A complete and genetically stable male sterile line with high outcrossing rate is a prerequisite for the development of commercial hybrid soybean. It was reported in the last century that the soybean male sterile ms2 mutant has the highest record with seed set. Here we report the cloning and characterization of the MS2 gene in soybean, which encodes a protein that is specifically expressed in the anther. MS2 functions in the tapetum and microspore by directly regulating genes involved in the biosynthesis of secondary metabolites and the lipid metabolism, which is essential for the formation of microspore cell wall. Through comparison of the field performance with the widely used male sterile mutants in the same genetic background, we demonstrated that the ms2 mutant conducts the best in outcrossing rate and makes it an ideal tool in building a cost-effective hybrid system for soybean.

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