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. 2016 Dec 26;9:145. doi: 10.3389/fnmol.2016.00145

Figure 1.

Figure 1

Onecut (OC)-1 and Vsx1 are present in an early V2 interneuron population. (A–A″′) At e9.5, OC-1 is detected in cells located between motor neurons (Isl1+, inset A′; arrowhead indicates the location of A″ and A″′ insets) and V1 interneurons (Foxd3+). (B–B″′) These cells derive from the p2 progenitor domain (Ascl1+) and are not motor neurons (Isl1+, inset B′; arrowhead indicates the location of B″ and B″′ insets). (C–C″) OC-1 is detected in the V2 domain in cells that are neither V2a (Chx10+) nor V2b (Gata3+) interneurons. (D–D″′) Vsx1 is detected in cells containing OC-1 located between motor neurons (Isl1+, inset D′; arrowhead indicates the location of D″ and D″′ insets) and V1 interneurons (Foxd3+). (E–E″) Vsx1 is present in cells that derive from the p2 domain (Ascl1+) and contain OC-1. (F–F″) Vsx1+ cells are distinct from early V2a (Chx10+) and V2b (Gata3+) interneurons. Scale bar = 50 μm.