Fig. 3. MGE cells expressing alkaline phosphatase were grafted into the wild-type E13.5 MGE. The majority of graft-derived cells are found in the neocortex in 3-week-old (left, more posterior coronal section) and 4-month-old (right, more anterior coronal section) animals. Some cells in the posterior section are observed in the amygdala and CA1 field of the hippocampus. In contrast to the 4-day survival (Fig. 1G-I), no graft-derived cells are found in the marginal zone (the dark staining in the marginal zone are labeled projections of neurons located deeper in the cortical plate, arrow). A, amygdala; MZ, marginal zone; NCx, neocortex; Str, striatum.