数字农科院2.0

Osmfs1/Oshop2 Complex Participates In Rice Male And Female Development

文献类型： 外文期刊

作者： Lu, JY; Wang, CL; Wang, HY; Zheng, H; Bai, WT; Lei, DK; Tian, YL; Xiao, YJ; You, SM; Wang, QM; Yu, XW; Liu, SJ; Liu, X; Chen, LM; Jang, L; Wang, CM; Zhao, ZG; Wan, JM

作者机构：

关键词： Meiosis; Sterile; Osmfs1; Oshop2; Rice

期刊名称： FRONTIERS IN PLANT SCIENCE

ISSN： 1664-462X

年卷期： 2020 年 11 卷

页码：

收录情况： JCR（2021版）

摘要： Meiosis plays an essential role in the production of gametes and genetic diversity of posterities. The normal double-strand break (DSB) repair is vital to homologous recombination (HR) and occurrence of DNA fragment exchange, but the underlying molecular mechanism remain elusive. Here, we characterized a completely sterile Osmfs1 (male and female sterility 1) mutant which has its pollen and embryo sacs both aborted at the reproductive stage due to severe chromosome defection. Map-based cloning revealed that the OsMFS1 encodes a meiotic coiled-coil protein, and it is responsible for DSB repairing that acts as an important cofactor to stimulate the single strand invasion. Expression pattern analyses showed the OsMFS1 was preferentially expressed in meiosis stage. Subcellular localization analysis of OsMFS1 revealed its association with the nucleus exclusively. In addition, a yeast two-hybrid (Y2H) and pull-down assay showed that OsMFS1 could physically interact with OsHOP2 protein to form a stable complex to ensure faithful homologous recombination. Taken together, our results indicated that OsMFS1 is indispensable to the normal development of anther and embryo sacs in rice.

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