Larger Image Figure 2. Time-course of morphological changes characterizing the spontaneous death of progesterone matured oocytes.Fully-grown prophase oocytes were isolated from the ovaries and incubated in the presence (+Pg) or in the absence (−Pg) of 1 µM progesterone. (A) Oocytes originating from one female were photographed at the indicated times. (B) Time-course of death of either prophase-blocked oocytes (−Pg, white circles) or progesterone-matured oocytes (+Pg, black circles) from eight different females. Oocytes were considered as dead when their external morphology was similar to the one occurring at 48 h in panel A. Image published in: Du Pasquier D et al. (2011) Du Pasquier et al. Creative Commons Attribution license Permanent Image Page Printer Friendly View XB-IMG-126336 |