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Fig. 2. Unchanged expression of ß-catenin and Fgfr1 in
RCAS-FGFR1-Fc- and RCAS-FGFR2-Fc-infected embryos at HH27-28. (A-F) Embryos
were virus-injected into the subectodermal mesenchyme of the back at HH18 and
analyzed for Fgfr1 and ß-catenin expression by
whole-mount RNA in situ hybridization at HH27-28. (G-J) Sections through the
embryos shown in B, C, E and F stained with an antibody against the viral gag
protein demonstrating widespread infection of the mesenchyme. Dashed lines
indicate the position of the midline of the embryos, asterisks indicate
regions with infected cells in the ectoderm.
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