Figure 9. Distribution of DJ694 GAL4-mediated UAS-lacZ expression visualized by X-gal staining of cryosections of 10 (A–F) and 30 (G–L) days old adult males in presence (100 µg/ml tetracycline) (B, D, F, H, J, L) or absence of the inducer (A, C, E, G, I, K).

(A, B, G, H) w ¹¹¹⁸: negative control (UAS-lacZ/+; 3.3, DJ1077/+). (C, D, I, J) DJ694: positive control (DJ694/UAS-lacZ). (E, F, K, L) GAL80: experimental animals (DJ694/Bg2; 3.3, DJ1077). Several pictures of the same section were stitched together to generate whole-fly views. am, abdominal wall muscle; fm, flight muscle; lgm, leg muscle; lm, labial muscle.