Fig. 8

Progression of timing of neurogenesis, oligodendrogenesis and astrocytogenesis in the embryonic tuberal hypothalamus. Following a first wave of neurogenesis which ends around E14.5, gliogenesis begins with a second wave producing oligodendrocyte progenitors and OPCs with a peak in population production around E15.5. Subsequently a third wave of astrocytogenesis produces astrocyte precursor cells between E15.5 and E17.5