Fig. 4. Dorsal otic gene expression is markedly affected in Fgf3
mutants after E9.5. Mouse embryos probed with Gbx2 (A-D),
Dlx5 (E-H), Wnt2b (I,J) or
Hmx3 (K,L) were sectioned transversely
(A'-L') at the locations indicated by the white lines in
A-L. Stage and genotype of each embryo are indicated at the lower left and
right, respectively, of each whole-mount panel. ov, otic vesicle; nt, neural
tube.