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Fig. 3 Ectopic Bmp signaling during early somitogenesis alters tailbud morphogenesis. (A–D) Transgenic embryos (right) and wild-type controls were heat shocked at the 3-somite stage. No morphological change is visible at the 9-somite stage (B). By the 16-somite stage the tailbud and posterior somites display clear alterations (D). (E, F) At approximately 42 hpf transgenic embryos (F) display a shortened body axis and the epidermal fin fold has failed to form normally.
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Reprinted from Developmental Biology, 329(1), Row, R., and Kimelman, D., Bmp inhibition is necessary for post-gastrulation patterning and morphogenesis of the zebrafish tailbud, 55-63, Copyright (2009) with permission from Elsevier. Full text @ Dev. Biol.