Convergent projections of Drosophila olfactory neurons to specific glomeruli in the antennal lobe

Qian Gao, Bingbing Yuan, Andrew Chess

Research output: Contribution to journalArticlepeer-review

347 Scopus citations

Abstract

Candidate Drosophila olfactory receptors (ORs) provide molecular tools to investigate how the organization of the Drosophila olfactory system determines the coding of olfactory stimuli. Neurons in the third antennal segment and maxillary palp appear to express different ORs. Individual olfactory neurons send axonal projections to glomeruli in the antennal lobe. Using transgenic flies, we provide evidence that the neurons expressing a given OR gene, which have cell bodies distributed among neurons expressing other ORs, converge in their projections to topographically fixed glomeruli in the antennal lobe. This convergence allows for the formation of an odotopic map in the antennal lobe whose organization could provide a basis for olfactory discrimination in Drosophila.

Original languageEnglish
Pages (from-to)780-785
Number of pages6
JournalNature Neuroscience
Volume3
Issue number8
DOIs
StatePublished - Aug 2000
Externally publishedYes

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