Figure 2.

Actβ mutant adult escapers have a disproportionately smaller abdomen compared to head, thorax, leg, or wing. (A) Actβ⁸⁰ mutant males that eclose as adults weigh ∼28% less than vs. w¹¹¹⁸ controls (n = 3–4 groups containing 9–10 individuals). (B and C) Heads of mutant males are ∼8% smaller (Bar, 500 μm; n > 30). (D-F) Thorax (D and E) and abdomens (D and F) are ∼4% and ∼24% smaller, respectively (Bar, 500 μm; n = 23). (G and J) Legs and wings (H and K) of mutants are ∼2% and ∼4% smaller, respectively (Bar, 500 μm; n = 22–46). (I and L) Trichome density in the adult wing shows no difference in cell size (Bar, 50 μm; n = 13–16). Means ± SD are shown. All body part images are of Act⁸⁰ mutant male flies and the red outline indicates the portion of the appendage that was measured. ** P < 0.01, *** P < 0.001, and **** P < 0.0001. ns, not significant.