Fig. 2From: From primordial germ cells to primordial follicles: a review and visual representation of early ovarian development in miceThe initial signaling interactions in primordial germ cells begin on embryonic day 5 (E5) and are involved in the maintenance of pluripotency factors. Molecular events from E5 to E7 occur between the primordial germ cells (red outline) and embryonic tissues (green outline)Back to article page