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Fig. S2 Ectopic Bmp signaling disrupts somite morphogenesis. Wild-type (top) and transgenic (bottom) embryos were heat shocked at the 3-somite stage and fixed at approximately 32 h post fertilization. DAPI staining shows the nuclei aligned along clear borders in the chevron-shaped somites of the wild type embryo. Anterior somites in the transgenic embryo have indistinct or nonexistent borders. Posterior somites show partially normal segmentation but do not form the correct shape.
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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.