nmr2 represses eve expression in the Drosophila nerve cord.
Stage 15 wild-type (A,B), Df(2L)sc19-4−/− (C,D), and nmr2−/− (E,F) mutant nerve cords stained for Eve. (A,B) In wild-type nerve cords Eve labels 5–6 U/CQ, 10 EL, RP2, and aCC/pCC neurons as indicated. (C) In Df(2L)sc19-4−/− mutant embryos, ectopic Eve-positive neurons arise laterally (arrows) and (D) there is a decrease in the presence of Eve-positive aCC/pCC neurons (brackets). (E,F) nmr2−/− mutant embryos (midGA174) exhibit the same phenotype as that observed in Df(2L)sc19-4−/− embryos. Panels A, C, E – ventral views and panels B, D, F – dorsal views of the Drosophila nerve cord; the vertical line marks the midline.