Fig. 1. GFP⁺ neurons in the dorsal cortex of heterozygous (Gad67^gfp/+) mice. Insets are high-magnification views of migrating cells identified by numbered arrows. Corresponding insets are arranged from left to right. Note that there are many cells that appear to be migrating tangentially (B-1, C-1) or obliquely to the tangential axis (B-2). Some cells are oriented radially (C-2,3). GFP⁺ neurons can also be found in the VZ. (A) E12; (B) E13.5; (C) E15.5. GFP⁺ neurons penetrated into the lateral cortex at E12 and are distributed in more medial parts at later stages. VZ, ventricular zone; SVZ, subventricular zone; IZ, intermediate zone; SP, subplate; CP, cortical plate; MZ, marginal zone. Scale bar: 100 µm.

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