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Figure Caption
Fig. S5
Blocking Bmp signaling via hs:dnBmpR1a-GFP and loss of endoderm in sox32 mutants reduces Fgf signaling. (A&B) Expression of the Fgf signaling target etv4 in heat-shocked (A) control or (B) hs:dnBmpR1a-GFP embryos. (B) Expression of etv4 is reduced in heat-shocked hs:dnBmpR1a-GFP embryos compared to control embryos (A). (C&D) Expression of fgfr4 in wild-type (C) and sox32 mutant embryos (D). Expression of fgfr4 is reduced in embryos lacking endoderm (D compared to C). Lateral views (A&B), ventral views (C&D), anterior to the left. Scale bar = 50 µm.
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