Fig. 9. Model for the generation of RGCs through a Dlx1/Dlx2 dependent
pathway (A). Dlx1/Dlx2-expressing cells downregulate Chx10.
These cells may then establish Brn3b expression and terminally
differentiate into RGCs. The majority of RGCs are derived from
Math5/Brn3b co-expressing populations of retinal progenitors (B). We
suggest that Dlx1/Dlx2-specified RGCs might represent a distinct
late-born RGC population in the murine retina.