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Fig. 3
Dkk1b is a downstream component of the FGF signaling pathway. Expression of dkk1b in (A) a wild-type embryo, (B) an uninjected ichabod embryo, (C) an FGF8 mRNA-injected ichabod embryo, and (D) a β-catenin mRNA-injected ichabod embryo. Embryos are at the shield stage, shown in animal pole views. Scale bar represents 100 µm.
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Reprinted from Developmental Biology, 424(2), Tanaka, S., Hosokawa, H., Weinberg, E.S., Maegawa, S., Chordin and dickkopf-1b are essential for the formation of head structures through activation of the FGF signaling pathway in zebrafish, 189-197, Copyright (2017) with permission from Elsevier. Full text @ Dev. Biol.