Reference Report

Reference
Citation	Jefferis, G.S.X.E., Marin, E.C., Stocker, R.F., Luo, L. (2001). Target neuron prespecification in the olfactory map of Drosophila. Nature 414(6860): 204--208. (Export to RIS)
FlyBase ID	FBrf0141667
Publication Type	Research paper
PubMed ID	11719930
PubMed Abstract	In Drosophila and mice, olfactory receptor neurons (ORNs) expressing the same receptors have convergent axonal projections to specific glomerular targets in the antennal lobe/olfactory bulb, creating an odour map in this first olfactory structure of the central nervous system. Projection neurons of the Drosophila antennal lobe send dendrites into glomeruli and axons to higher brain centres, thereby transferring this odour map further into the brain. Here we use the MARCM method to perform a systematic clonal analysis of projection neurons, allowing us to correlate lineage and birth time of projection neurons with their glomerular choice. We demonstrate that projection neurons are prespecified by lineage and birth order to form synapses with specific incoming ORN axons, and therefore to carry specific olfactory information. This prespecification could be used to hardwire the fly's olfactory system, enabling stereotyped behavioural responses to odorants. Developmental studies lead us to hypothesize that recognition molecules ensure reciprocally specific connections of ORNs and projection neurons. These studies also imply a previously unanticipated role for precise dendritic targeting by postsynaptic neurons in determining connection specificity.
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Language of Publication	English
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Publication Type	Journal
Abbreviation	Nature
Title	Nature
Publication Year	1869-
ISBN/ISSN	0028-0836
Data from Reference
Alleles (3)
	Mmus\Cd8a^{Scer\UAS.T:Avic\GFP} Scer\GAL4^GH146 Scer\GAL80^αTub84B.PL
Constructs (2)
	P{tubP-GAL80} P{UAS-mCD8::GFP.L}
Genes (5)
	brp Mmus\Cd8a Scer\GAL4 Scer\GAL80 T:Avic\GFP
Insertions (1)
	P{GawB}GH146
Transcripts (1)
	Scer\GAL4^GH146RA