Fig. 4

Fig. 4 UAS(β-actin):hoxa3a^um61 transgenic embryos are indistinguishable from their non-transgenic siblings with respect to expression of all hindbrain genes tested. Embryos were collected at 14hpf and assayed for expression of hoxb1a (A), valentino (B), krox20 (C), or hoxa3a (D). All embryos are from an outcross of a heterozygous UAS(β-actin):hoxa3a^um61 carrier and may be either heterozygous or wild type, but there is no difference in expression of hoxb1a, valentine, hoxa3a, and krox20 within the clutch of embryos. Embryos are in dorsal view with anterior to the left.