Figure 2.

The Majority of Prototypic GPe Neurons Co-Express Lhx6

(A) Immunofluorescence labeling of GPe neurons in an Lhx6-EGFP mouse (FP, fluorescent protein; pseudocolored red). Most FP+ neurons co-expressed Nkx2-1 (arrows), but not FoxP2 (arrowheads). Some Nkx2-1+ neurons did not express FP (double arrowhead).

(B) Expression profiles of FP+ neurons.

(C) Proportions of GPe neurons expressing FP alone, Nkx2-1 (with or without PV), or FoxP2. Note that many PV+ and PV− prototypic neurons were also FP+.

Scale bar, 20 μm.