Odorant receptors: axon contact-mediated diversity.
To make the most of a small number of neurons, the nematode olfactory system includes neurons that are bilaterally symmetrical in morphology, but differ in the sets of genes they express. An intriguing recent example is the axon contact-mediated asymmetry in expression of the str-2 odorant receptor gene.
Chess
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Whitehead Institute for Biomedical Research, Nine Cambridge Center, Cambridge, Massachusetts 02142, USA. chess@wi.mit.edu.
D000818:Animals; D001369:Axons / Q000502:physiology*; D017173:Caenorhabditis elegans / Q000235:genetics; D015870:Gene Expression; D018035:Receptors, Odorant / Q000235:genetics*
D018035:Receptors, Odorant