Fig 1. Precocious and supernumerary sensory neuron specification in sox10^baz1 mutants.

A,B) neurod1 expression is seen in more cells (close-ups in left panels; arrowheads indicate a subset of neurod1⁺ cells) and extending more posteriorly (right panels; arrowhead marks posteriormost neurod1⁺ DRG) in baz1 mutants compared with WT siblings at both 36 and 45 hpf. C) Counts of neurod1⁺ cells on one side of embryo at 36 and 45 hpf embryos (N = 11 for all conditions except 36 hpf baz1, where N = 13). baz1 mutants significantly different to WT siblings (Student’s t test; ***, p<0.0001. In this and all subsequent images, embryos are shown in lateral view with dorsal to the top and anterior to the left, unless otherwise stated. Scale bar, 100 μm.