Fig. 7. Disruption of ff1b expression by antisense morpholinos reduces interrenal primordia and decreases ff1b/scc expression. The interrenal primordia of the wild-type embryos (A,D,G), ff1a morphants (B,E,H) and ff1b morphants (C,F,I) are labeled with ff1b (brown color) and also (in A,C,D,F) scc (red color). (A-F) Ventral view, (G-I) side view. The sizes of the interrenal primordia (arrows) and the expression of ff1b and scc are reduced in ff1b morphants at 24 hpf (C), 33 hpf (F) and 3 dpf (I), while the hypothalamic region, marked by ff1b (arrowheads) becomes larger (I).