Fig. S5
furinA and furinB redundantly activate dlx5a, hand2, and stimulate ventral arch elongation. (A–D) hand2 expression at 55 hpf is dramatically reduced in furinA−;furinB MO (D) embryos with respect to WT (A), furinA− (B), and furinB MO (C) embryos. (E–H) dlx5a expression at 36 hpf is strongly reduced in furinA−;furinB MO (H) embryos with respect to WT (E), furinA− (F), and furinB MO (G) embryos. (I–L) dlx2a staining at 36 hpf illustrates the arch length. Ventral arch length below the first pouch is substantially reduced in furinA−;furinB MO embryos (L) with respect to WT (I), furinA− (J), and furinB MO (K) embryos. a1 and a2 label pharyngeal arch 1 and 2. Dotted lines label pouch 1. m labels the mouth; eye labels the eye. Scale bars: 50 μm.
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