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Fig. 8. Mouse MyoD activates the expression of FgfR4 in the chick neural tube. One day after electroporation with mouse MyoD, transverse sections were hybridised with the DIG-labelled antisense probe for mouse MyoD (A) and FgfR4 (B). FgfR4 expression is clearly upregulated in the electroporated (right) side of the neural tube. Six hours after electroporation of mouse MyoD, FgfR4 expression is ectopically detected in a region similar to that of GFP location (C,D), whereas electroporation of GFP alone does not induce any FgfR4 expression in the neural tube (E,F).