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Os SHOC 1 and Os PTD 1 are essential for crossover formation during rice meiosis
Author(s) -
Ren Yun,
Chen Dan,
Li Wenjie,
Zhou Dan,
Luo Tao,
Yuan Guoqiang,
Zeng Jing,
Cao Ye,
He Zhongshan,
Zou Ting,
Deng Qiming,
Wang Shiquan,
Zheng Aiping,
Zhu Jun,
Liang Yueyang,
Liu Huainian,
Wang Lingxia,
Li Ping,
Li Shuangcheng
Publication year - 2019
Publication title -
the plant journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.058
H-Index - 269
eISSN - 1365-313X
pISSN - 0960-7412
DOI - 10.1111/tpj.14214
Subject(s) - meiosis , fertility , biology , sexual reproduction , gene , allele , genetics , andrology , population , medicine , environmental health
Summary Meiosis is essential for eukaryotic sexual reproduction and plant fertility, and crossovers ( CO s) are essential for meiosis and the formation of new allelic combinations in gametes. In this study, we report the isolation of a meiotic gene, Os SHOC 1 , and the identification of its partner, Os PTD 1 . Osshoc1 was sterile both in male and female gametophytes, and it showed a striking reduction in the number of meiotic CO s, indicating that Os SHOC 1 was required for normal CO formation. Further investigations showed that Os SHOC 1 physically interacted with Os PTD 1 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 Os SHOC 1 and Os PTD 1 are essential for rice fertility and CO formation, possibly by stabilizing the recombinant intermediates during meiosis.