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Fig. S5
Loss of BMP signaling during arch formation disrupts expression of pitx2ca and fgf8a in the oral ectoderm. (A-F) Whole-mount in situ hybridization for pitx2ca (A-C) and fgf8a (D-F) at 30 hpf, lateral views, anterior towards the left. Heat shocked controls (A,D) and Tg(hsp70I:dnBmpr1a-GFP) embryos (B,C,E,F). Expression of pitx2ca is reduced and fgf8a expands in the stomodeum in the absence of BMP signaling.
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