Abstract：
:We explored how the odor map in the Drosophila antennal lobe is represented in higher olfactory centers, the mushroom body and lateral horn. Systematic single-cell tracing of projection neurons (PNs) that send dendrites to specific glomeruli in the antennal lobe revealed their stereotypical axon branching patterns and terminal fields in the lateral horn. PNs with similar axon terminal fields tend to receive input from neighboring glomeruli. The glomerular classes of individual PNs could be accurately predicted based solely on their axon projection patterns. The sum of these patterns defines an "axon map" in higher olfactory centers reflecting which olfactory receptors provide input. This map is characterized by spatial convergence and divergence of PN axons, allowing integration of olfactory information.
journal_name
Celljournal_title
Cellauthors
Marin EC,Jefferis GS,Komiyama T,Zhu H,Luo Ldoi
10.1016/s0092-8674(02)00700-6subject
Has Abstractpub_date
2002-04-19 00:00:00pages
243-55issue
2eissn
0092-8674issn
1097-4172pii
S0092867402007006journal_volume
109pub_type
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