Abstract:
:From insects to mammals, olfactory receptor neurons (ORNs) expressing a common olfactory receptor target their axons to specific glomeruli with high precision. Here we show in Drosophila that the POU transcription factor Acj6 controls the axon targeting specificity of a subset of ORN classes, as defined by the olfactory receptors that they express. Of these classes, some require Acj6 cell-autonomously, whereas others require Acj6 cell-nonautonomously. Mosaic analyses show that cooperative targeting occurs between axon terminals of the same ORN classes and that there are hierarchical interactions among different ORN classes. We propose that the precision of ORN axon targeting derives from both intrinsic transcriptional control and extensive axon-axon interactions.
journal_name
Nat Neuroscijournal_title
Nature neuroscienceauthors
Komiyama T,Carlson JR,Luo Ldoi
10.1038/nn1284subject
Has Abstractpub_date
2004-08-01 00:00:00pages
819-25issue
8eissn
1097-6256issn
1546-1726pii
nn1284journal_volume
7pub_type
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