Figure 2.

Temporal patterns of expression of the wg gene in the antennae of adult drop-dead vs. control males. (A) Photomicrographs of whole-mount adult antennae from animals containing one autosomal copy of the wg enhancer-trap chromosome, with or without drop-dead on the X-chromosome, reacted with X-Gal to reveal blue staining in cells expressing β-gal. Each is a typical example from over 10 flies at each age after emergence of the adult. (B) Relative amount of β-gal expressed in the combined third and fifth antennal segments of drop-dead vs. control males at 25°C, plotted against chronological age. (C) Plotted against percent life span. (Bars = SEM.)