Developmental profiles and hormone induction of calponin and Br in epidermis. (A) Expression changes of both genes. 5-24 h, 5-36 h, 6-0 h, 6-24 h, 6-48 h, 6-72 h, 6-96 h, 6-120 h, P-0 day denote mRNA samples from different developmental stages from 5th-instar 24 hour to pupae. (B) 20E induction. 6th-6 h larvae were injected with 20E (500 ng/larva) for 1 h, 3 h, 6 h, 12 h and 24 h, DMSO injection as a control.