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Fig. 2. Msx1 represses the expression of neural progenitor genes. Neural progenitor
markers Cath1 (A,B) and Pax7 (I,J), which are detected by immunofluorescence
labeling; as well as Cash1 (C,D), chick Ngn1 (E,F), chick
Ngn2 (G,H), which are detected by in situ hybridization, are
repressed by Msx1 (A,C,E,G,I) but not Msx1a (B,D,F,H,J). Arrows in C and E
indicate the disruption of dorsoventral patterns of Cash1 and chick Ngn1
expression. In all panels, left is the control side and right is the
electroporated side.