(A–B) Brains of UAS-mCD8GFP; Trh::Gal4 (A) or those of UAS-mCD8GFP; TrhGKO (B) immunostained with the anti-GFP antibody (green) and NC82 (red). Brains of UAS-mCD8GFP; 5HT2b::Gal4 (C), or of UAS-mCD8GFP; 5HT2bGKO (D), or of UAS-rCD2GFP; 5HT2bGKO (E) immunostained with the anti-GFP antibody (green) and NC82 (red). (F–M) Expression patterns of the Trh and 5HT2b genes in the VNC. (F–I) VNCs of UAS-mCD8GFP; Trh::Gal4 (F), UAS-stingerGFP; Trh::Gal4 (G), UAS-DscamGFP; Trh::Gal4 (H) and UAS-sytGFP; Trh::Gal4 (I) flies immunostained with the anti-GFP antibody (green) and NC82 (red). (J–M) VNCs of UAS-mCD8GFP; 5HT2b::Gal4 (J), UAS-stingerGFP; 5HT2b::Gal4 (K), UAS-DscamGFP; 5HT2b::Gal4 (L) and UAS-sytGFP; 5HT2b::Gal4(M) flies immunostained with the anti-GFP antibody (green) and NC82 (red).