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Publication : Comprehensive maps of Drosophila higher olfactory centers: spatially segregated fruit and pheromone representation.

First Author  Jefferis Gregory S X E Year  2007
Journal  Cell Volume  128
Pages  1187-203 PubMed ID  17382886
Abstract Text  In Drosophila, approximately 50 classes of olfactory receptor neurons (ORNs) send axons to 50 corresponding glomeruli in the antennal lobe. Uniglomerular projection neurons (PNs) relay olfactory information to the mushroom body (MB) and lateral horn (LH). Here, we combine single-cell labeling and image registration to create high-resolution, quantitative maps of the MB and LH for 35 input PN channels and several groups of LH neurons. We find (1) PN inputs to the MB are stereotyped as previously shown for the LH; (2) PN partners of ORNs from different sensillar groups are clustered in the LH; (3) fruit odors are represented mostly in the posterior-dorsal LH, whereas candidate pheromone-responsive PNs project to the anterior-ventral LH; (4) dendrites of single LH neurons each overlap with specific subsets of PN axons. Our results suggest that the LH is organized according to biological values of olfactory input. Doi  10.1016/j.cell.2007.01.040
Issue  6 Month  Mar

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