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Fig. 5. Expression of Msx1, Olig3, Dbx2 and Ngn1 in the
Gsh1/Gsh2 mutant spinal cord. (A-D) Msx1 and Olig3
expression in Class A progenitors is unchanged in E10.5 Gsh1/Gsh2
double mutants. The dashed line indicates the boundary between dI3 and dI4
progenitors. (E,F) Expression of Dbx2 in dI6 progenitors is unchanged
in the double mutant spinal cord, indicating the Gsh proteins do not repress
Dbx2. (G,H) Ngn1 expression expands into the dI3-dI5
progenitor domain in the Gsh1/Gsh2 mutant cord.