Figure 1.

SP8, SP9, and DLX2 are coexpressed in the E16.5 dLGE SVZ. (A, B) GSX2 was strongly expressed in the dLGE VZ and SVZ1; only a few GSX2⁺ cells were in the SVZ2, whereas DLX2 was mainly expressed in the SVZ1&2. Note weak expression of GSX2 in the vLGE. (C) The section was stained with DAPI. (D, E) Most ASCL1⁺ cells expressed DLX2. (F–I) DLX2 was strongly expressed in the SVZ1 and relatively weakly expressed in the SVZ2 and DLX2 expression began before SP8/9 expression. Most cells in the SVZ2 expressed DLX2/SP8/SP9. (J, K) Quantification of DLX2⁺ cells that expressed SP8, SP9, or SP8/9 in the dLGE SVZ1 and SVZ2 at E16.5. Scale bar: 100 μm in G for (A–I).