Abstract:
:In all sexually reproducing organisms, cells of the germ line must transition from mitosis to meiosis. In mice, retinoic acid (RA), the extrinsic signal for meiotic initiation, activates transcription of Stra8, which is required for meiotic DNA replication and the subsequent processes of meiotic prophase. Here we report that RA also activates transcription of Rec8, which encodes a component of the cohesin complex that accumulates during meiotic S phase, and which is essential for chromosome synapsis and segregation. This RA induction of Rec8 occurs in parallel with the induction of Stra8, and independently of Stra8 function, and it is conserved between the sexes. Further, RA induction of Rec8, like that of Stra8, requires the germ-cell-intrinsic competence factor Dazl. Our findings strengthen the importance of RA and Dazl in the meiotic transition, provide important details about the Stra8 pathway, and open avenues to investigate early meiosis through analysis of Rec8 induction and function.
journal_name
PLoS Genetjournal_title
PLoS geneticsauthors
Koubova J,Hu YC,Bhattacharyya T,Soh YQ,Gill ME,Goodheart ML,Hogarth CA,Griswold MD,Page DCdoi
10.1371/journal.pgen.1004541subject
Has Abstractpub_date
2014-08-07 00:00:00pages
e1004541issue
8eissn
1553-7390issn
1553-7404pii
PGENETICS-D-14-00436journal_volume
10pub_type
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