Figure 2. XBTBD6 is regulated by proneural and neurogenic factors. A: In situ analysis of neurula embryos (dorsal views) injected with the indicated mRNA. LacZ mRNA was used as a tracer in c,d. B: Reverse transcriptase-polymerase chain reaction (RT-PCR) analysis of animal cap explants isolated from control embryos (CC) or embryos injected with X-ngnr-1. CE, control embryos.