Schematic summary of the neuronal and astrocytic differentiation cascades in the dentate gyrus (DG) as reflected in transgenic reporter mouse lines. POMC, Proopiomelanocortin; DCX, doublecortin; BLBP, brain lipid-binding protein; GFAP, glial fibrillary acidic protein. (From data in Encinas et al. 2011b; modified, with permission, from the authors.)