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Fig. 5 | BMC Evolutionary Biology

Fig. 5

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

Fig. 5

FGF signaling regulates the expression of the mesodermal transcription factor genes in the presumptive mesoderm. In situ hybridization for snail (A1-A3), foxc (B1-B3), foxf (C1-C3), twist (D1-D3) and foxa (E1-E3) in 26 hpf embryos treated with DMSO (A1-E1) or 2.5 μM PD173074 at 18 hpf (A2-E2) or 23 hpf (A3-E3). All panels are shown in the same scale, according to the scale bar (100 μm) in A1

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