Fig. 3. In situ hybridization analysis of genes affected in or^J mutants. (A-G) Sections through E14.5 or E17.5 or^J/+ heterozygous or or^J/or^J homozygous littermates, as indicated, were analyzed for the following RNAs: (A) Chx10, (B) Fgf15, (C) Gap43, (D) Gas1, (E) Wfdc1, (F), Mitf, (G) Tfec. Full expression patterns are discussed in Results and summarized in Fig. 4. Note scale bar differences between or^J/+ and or^J/or^J sections. (E) Arrows indicate boundaries of Wfdc1 expression. (E) Inset shows peripheral section from the same eye. All scale bars are 100 µm.