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Figure Caption
Fig. S10 Pharmacological modulation of RA signaling in wild-type and MZsmo embryos. (A-F) Wild-type (A,C,E) or MZsmo (B,D,F) embryos (10-somite stage, 14 hpf) were treated with (A,B) DMSO, (C,D) 10 µM DEAB or (E,F) 100 nM RA and stained for ptc1 (purple) and hoxb4a (red) transcripts to assess Hh and RA pathway states, respectively. Embryos are shown as flat mounts and viewed dorsally (primary micrographs) or laterally (insets), anterior to the left. Scale bar: 200 μm.
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