MORC2B is essential for meiotic progression and fertility.

Abstract:

: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.

journal_name

PLoS Genet

journal_title

PLoS genetics

authors

Shi B,Xue J,Zhou J,Kasowitz SD,Zhang Y,Liang G,Guan Y,Shi Q,Liu M,Sha J,Huang X,Wang PJ

doi

10.1371/journal.pgen.1007175

subject

Has Abstract

pub_date

2018-01-12 00:00:00

pages

e1007175

issue

1

eissn

1553-7390

issn

1553-7404

pii

PGENETICS-D-17-01927

journal_volume

14

pub_type

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