Additional file 8: of Reiterative use of FGF signaling in mesoderm development during embryogenesis and metamorphosis in the hemichordate Ptychodera flava

QPCR analyses of FGF ligands, FGF receptors, foxc and foxf during metamorphosis. The mRNA expression levels of genes encoding FGF ligands and receptors (A) and two myogenic factors, foxc (B) and foxf (C), were measured at the Spengel (gray), Agassiz (green) and juvenile (blue) stages. The gene names are given on the X-axis, and the relative expression levels normalized to 18S rRNA are shown by the bars. The numbers above each bar indicate the fold differences between gene expression levels in the indicated stages relative to the Spengel stage. (PNG 123 kb)