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Fig. 7. Zebrafish ody mutant embryos show OSN axon projection
defects. (A-D) Axon trajectories from both ciliated and
microvillous OSNs are labeled at 3 dpf by whole-mount immunohistochemistry
with anti-PCAM antibody, and are shown in frontal views as z-stacked
images. ody/ody embryos are classified into three groups
according to the severity of axon pathfinding defects (B-D): class 1 (8 of 18
embryos), a virtually wild-type projection pattern; class 2 (5 of 18),
unilatetal projection defects; class 3 (5 of 18), bilateral projection
defects. Projection patterns of all ody/+ embryos (n=15)
fall into class 1. Asterisks in A indicate neuromasts in the lateral line
system. Scale bar: 100 µm. d, dorsal; ob, olfactory bulb;
oe, olfactory epithelium; v, ventral.
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