llb mutation causes a reduction in dpysl3 expression in RB neurons. A–F: Expression of plxna4, ntrk3a (trkC1), and dpysl3(crmp4) in the wild-type (A–C) and llb embryos (D–F) at 28 hpf. Lateral views with anterior at left. Brackets, spinal cord region; filled arrowheads, RB neurons. G, H, J, K: Expression of isl1 and dpysl3 in Tg neurons in the wild-type (G, H) and llb embryos (J, K) at 24 hpf. Broken lines, isl1-positive (G) or dpysl3-positive (H, K) Tg ganglia. Lateral views with anterior at left. I, L: Expression of sema3d in wild-type (I) and llb embryos (L). Broken lines, margin of the spinal cord. Dorsal views with anterior at top.
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