Fig. 8. Comparison of fgf10, pea3 and bmp2 expression in MOprdm1-injected embryos, and in hst and ika mutants. (A-L) Dorsal views of 30 hpf embryos stained for fgf10 (A-D), pea3 (E-H) or bmp2b (I-L) expression. While fgf10 expression is absent in ika, hst and MOprdm1 embryos (B,C,D), pea3 and bmp2b are transiently expressed in ika (F,J) but not hst or MOprdm1 embryos (G,H,K,L). Asterisks indicate a lack of marker gene expression within the pectoral fin mesenchyme. hst, heartstrings; ika, ikarus; MOprdm1, prdm1 morphant embryo; WT, wild type.