Fig. 6. Phenotypes obtained following pair-wise knockdown of br isoforms. (A) Phenotypes obtained. Arrow points to the most-affected urogomphi (br-Z2/Z4 dsRNA-treated pupa). For comparison, pupae of a control animal and of an animal given br core dsRNA are shown. (B) Dorsal and ventral views of an untreated adult with the wings removed. (C,D) Dorsal (C) and ventral (D) sides of an adult obtained from larva given br-Z1 and br-Z4 dsRNA. Pupal-specific gin traps are clearly visible on the dorsal abdomen (inset). Arrowhead shows the small patch of adult cuticle at the tip of the abdomen; arrow indicates a region of wing lacking the dark brown pigmentation. (E) Dorsal and ventral views of an adult produced from a larva treated with 1.5 nmoles hydroprene during the prepupal stage.