Fig. 7. Graphs showing the relationship between loss of polar cells, gain of polar cells and egg chamber stage in temperature-shift experiments. Upd-Gal4/+; P280/+; EP3620/+: dark gray; Upd-Gal4/+; P280/+; UAS-mCD8GFP/+: light gray. Egg chamber stage is plotted on the x-axis and percentage of expected polar cell groups in egg chambers of that stage that show loss of all polar cells (A) or that show four polar cells (B) is plotted on the y-axis. In each case, the value plotted is the average of three experiments. Error bars: standard deviation.