FIG. 2.

Reduced number of cells undergoing apoptosis in the spin mutant VNC. (A to D) VNCs at 6 h APF stained by the TUNEL method as viewed from the dorsal (A and C) or ventral (B and D) side. (A and B) EP822/CyO; (C and D) EP822/EP822. (E) Numbers of cells undergoing apoptosis at three different time points APF (4, 6, and 24 h) in spin heterozygotes (open squares) or homozygotes (filled squares). The mean and standard deviation of the mean are shown by a symbol and bar, respectively. The values for heterozygotes and homozygotes are significantly different at 6 h APF (P < 0.01 by Student's t test). At other time points, the difference between the values for heterozygotes and homozygotes is statistically insignificant (P > 0.05).