(a-d) Fluorescent images of Tbr2, GFP, and RBPMS on Tbr2TauGFP/+ retinas (a, c) and Tbr2TauGFP/fx (b, d) that was treated with AAV2-Cre. Retinas were isolated 12 days (a, b) or 38 days (c, d) post-injection. (e-f) Co-immunofluorescent staining of Tbr2, LacZ, and RBPMS on Tbr2fx/+:Opn4TaulacZ (e) or Tbr2fx/fx:Opn4TaulacZ (f) retinas. Retinas were isolated 14 days post-injection. Scale bars: 20 μm.