MORC2B is essential for meiotic progression and fertility.
MORC2B is essential for meiotic progression and fertility.
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MORC2B 对于减数分裂进展和生育能力至关重要
DOI:
10.1371/journal.pgen.1007175
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发表时间:
2018-01
期刊:
影响因子:
4.5
通讯作者:
Wang PJ
中科院分区:
文献类型:
--
作者:
Shi B;Xue J;Zhou J;Kasowitz SD;Zhang Y;Liang G;Guan Y;Shi Q;Liu M;Sha J;Huang X;Wang PJ
The microrchidia (MORC) family proteins are chromatin-remodelling factors and function in diverse biological processes such as DNA damage response and transposon silencing. Here, we report that mouse Morc2b encodes a functional germ cell-specific member of the MORC protein family. Morc2b arose specifically in the rodent lineage through retrotransposition of Morc2a during evolution. Inactivation of Morc2b leads to meiotic arrest and sterility in both sexes. Morc2b-deficient spermatocytes and oocytes exhibit failures in chromosomal synapsis, blockades in meiotic recombination, and increased apoptosis. Loss of MORC2B causes mis-regulated expression of meiosis-specific genes. Furthermore, we find that MORC2B interacts with MORC2A, its sequence paralogue. Our results demonstrate that Morc2b, a relatively recent gene, has evolved an essential role in meiosis and fertility.
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