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Fig. 4. (A) Whole-mount in situ hybridisations on embryos at stage 11.5-12 for XMyoD (left) and eFGF (right). Vegetal views, dorsal at the top. Both genes are expressed in the dorsolateral mesoderm, indicated by an arrowhead. (B) eFGF is expressed in the muscle precursor cells during the period when the community effect takes place, and is unaffected by cell dispersal during this time. Analysis by RNase protection. The expression level of eFGF is shown as a percentage of the cognate FGFR loading control value beneath each lane. |