Targeting olfaction.
An olfactory sensory neuron most probably expresses a single olfactory receptor gene, out of 1000 choices. Olfactory neurons expressing the same olfactory receptor are distributed over a wide area of the olfactory epithelium, but they project their axons to a few discrete positions in the olfactory bulb, out of 2500 choices. How?
Mombaerts
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The Rockefeller University, Box 242, 1230 York Avenue, New York, New York 10021, USA. mombaer@rockvax.rockefeller.edu
D000818:Animals; D001369:Axons / Q000502:physiology; D005821:Genetic Techniques; D009830:Olfactory Bulb / Q000502:physiology; D009833:Olfactory Pathways / Q000502:physiology; D011984:Sensory Receptor Cells / Q000502:physiology; D012903:Smell / Q000502:physiology*