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Fig. 3. Cxcl12a/Cxcr4b signaling is required for olfactory neuron
positioning. Wild-type zebrafish embryos (A), ody mutants
(B,C), cxcr4b MO-injected embryos (morphants)
(D), cxcl12a morphants (E) and cxcl12b
morphants (F), which all carry the omp:yfp transgene, were
stained with anti-GFP antibody at 24 hpf to visualize olfactory neurons. All
panels show frontal views with ventral to the bottom. Two representative
ody/ody embryos with mild (B) and severe (C) defects in
olfactory neuron positioning are shown. Scale bar: 100 µm.