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. 2022 Feb 7;13:711. doi: 10.1038/s41467-022-28347-z

Fig. 9. Model for ovarian diapause arrest and recovery.

Fig. 9

During diapause, the GSCs enter a state of inactivity mediated by Dpp downregulation, increased incidence of ROS, DNA damage, and Chk2 activation. The low level of differentiation maintains a pool of germline cells within the germarium, which replenishes GSCs upon diapause exit. Post-diapause, Dpp signaling from cap cells is restored and re-activates GSCs to reverse the developmental arrest.