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Fig. S4 Ectopic Bmp signaling minimally affects expression of bmp2a and bmp4. Wild-type (left) and transgenic (right) embryos were heat shocked at the 3-somite stage and fixed at the 9-somite stage, then stained for expression of bmp2a or bmp4 by WISH. No change in the expression of bmp2a is observed. The region of bmp4 expression in the tailbud is enlarged very slightly, and a small number of epidermal cells express this ligand ectopically.
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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.