Fig. S2
A positive control loop between Cnpy1 and FGF signaling is established in DFCs. (A-C) dp-Erk staining in uninjected (A), cnpy1-MO-injected (B) or DFCcnpy1-MO-injected (C) embryos at 60% epiboly stage. Scale bar: 200 μm. (D, E) dp-Erk staining in control-MO-injected (D) or cnpy1-MO-injected (E) Tg[sox17:GFP] embryos at 60% epiboly stage. Scale bar: 20 μm. dp-Erk signals (red) were down-regulated in GFP-positive DFCs (green). (F, G) cnpy1 (purple) and GFP (red) expression in control-MO-injected (F) or fgf8-MO-injected (G) Tg[sox17:GFP] embryos at 60% epiboly stage. Scale bar: 200 μm. Dotted lines mark the outlines of DFC populations.