Expression patterns of unc5b in zebrafish embryonic development. A montage of unc5b whole mounts in situ stained embryos is shown. (A, B, C) 12 somite, (D) 14 somite, (E, F) 25 hpf, (G, H) 30 hpf. (A), (D), (E), and (G) are lateral view. (B), (C), (F), and (H) are dorsal views. The arrowheads in (D) and (E) indicate outer epidermal cells. The black asterisk and white asterisk in (C) indicate lateral sensory neural plate cells and central motor neuron region, respectively. Abbreviations used are ds: dorsal side, f: forebrain, h: head, e: eye, hb; hindbrain, mb: midbrain, np: neural plate, ov: otic vesicle, rp: roof plate, t: tail, te: telencephalon.