MARF1 Regulates Essential Oogenic Processes in Mice

Mistress of Meiosis Meiosis is essential for proper distribution of maternal chromosomes to eggs during oogenesis. Su et al. (p. 1496 ) identified a gene, meiosis arrest female 1 ( Marf1 ), which is indispensable for meiosis and other oogenic processes. In mice, Marf1 mutations resulted in meiotic arrest and an increase in nuclear DNA double-strand breaks, phenotypes linked to up-regulated levels of specific messenger RNAs (mRNA). These findings place MARF1 as a key regulator of mammalian female fertility through its integration of oocyte mRNA homeostasis, meiosis, and maintenance of genomic integrity.