Ezh2 and G9a are preferentially expressed during retinogenesis. (A–H) Immunofluorescence detection of Ezh2 (A–D, red) and G9a (E–H, red) was overlaid on the nuclear counterstain (DAPI, blue) at E16, E18, P0, and adult. Scale bar, 20 μm. (I) Western blot analysis of Ezh2 and G9a at E14, E18, P0, and 6 months in whole retinal lysates.