Fig. S1. Qualitative expression of Rarα, Rarγ, Erf, Etv3/3l and Ddx20 at stage 14. (A-E) Whole-mount in situ hybridization of
Rarα (A), Rarγ (B), Erf (C), Etv3/3l (D) and Ddx20 (E) gene expression at Nieuwkoop and Faber stage 14. Dorsal views are shown
with anterior towards the right.