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OsSHOC1 and OsPTD1 are essential for crossover formation during rice meiosis

文献类型： 外文期刊

作者： Ren, Yun 2 ; Chen, Dan 1 ; Li, Wenjie 1 ; Zhou, Dan 1 ; Luo, Tao 1 ; Yuan, Guoqiang 1 ; Zeng, Jing 1 ; Cao, Ye 1 ; He, Zhong 1 ;

作者机构： 1.Sichuan Agr Univ, State Key Lab Hybrid Rice, Chengdu 611130, Sichuan, Peoples R China

2.Sichuan Agr Univ, Rice Res Inst, 211 Huimin Rd, Wenjiang 611130, Sichuan, Peoples R China

3.Chongqing Univ Arts & Sci, Chongqing Key Lab Econ Plant Biotechnol, Inst Special Plants, Yongchuan 402160, Peoples R China

4.Hunan Hybrid Rice Res Ctr, State Key Lab Hybrid Rice, Changsha 410125, Hunan, Peoples R China

关键词： rice; meiosis; crossover; SHOC1; PTD

期刊名称：PLANT JOURNAL （ 影响因子：6.417； 五年影响因子：7.627 ）

ISSN： 0960-7412

年卷期： 2019 年 98 卷 2 期

页码：

收录情况： SCI

摘要： Meiosis is essential for eukaryotic sexual reproduction and plant fertility, and crossovers (COs) are essential for meiosis and the formation of new allelic combinations in gametes. In this study, we report the isolation of a meiotic gene, OsSHOC1, and the identification of its partner, OsPTD1. Osshoc1 was sterile both in male and female gametophytes, and it showed a striking reduction in the number of meiotic COs, indicating that OsSHOC1 was required for normal CO formation. Further investigations showed that OsSHOC1 physically interacted with OsPTD1 and that the latter was also required for normal CO formation and plant fertility. Additionally, the expression profiles of both genes were consistent with their functions. Our results suggest that OsSHOC1 and OsPTD1 are essential for rice fertility and CO formation, possibly by stabilizing the recombinant intermediates during meiosis.

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