PMID- 16731509 OWN - NLM STAT- MEDLINE DCOM- 20060721 LR - 20220309 IS - 0896-6273 (Print) IS - 0896-6273 (Linking) VI - 50 IP - 5 DP - 2006 Jun 1 TI - A multireceptor genetic approach uncovers an ordered integration of VNO sensory inputs in the accessory olfactory bulb. PG - 697-709 AB - Pheromone detection by the vomeronasal organ (VNO) is thought to rely on activation of specific receptors from the V1R and V2R gene families, but the central representation of pheromone receptor activation remains poorly understood. We generated transgenic mouse lines in which projections from multiple populations of VNO neurons, each expressing a distinct V1R, are differentially labeled with fluorescent proteins. This approach revealed that inputs from neurons expressing closely related V1Rs intermingle within shared, spatially conserved domains of the accessory olfactory bulb (AOB). Mitral cell-glomerular connectivity was examined by injecting intracellular dyes into AOB mitral cells and monitoring dendritic contacts with genetically labeled glomeruli. We show that individual mitral cells extend dendrites to glomeruli associated with different, but likely closely related, V1Rs. This organization differs from the labeled line of OR signaling in the main olfactory system and suggests that integration of information may already occur at the level of the AOB. FAU - Wagner, Shlomo AU - Wagner S AD - Department of Neurobiology, Hebrew University, Jerusalem 91904, Israel. shlomo@lobster.ls.huji.ac.il FAU - Gresser, Amy L AU - Gresser AL FAU - Torello, A Thomas AU - Torello AT FAU - Dulac, Catherine AU - Dulac C LA - eng GR - R01 DC003903/DC/NIDCD NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Neuron JT - Neuron JID - 8809320 RN - 0 (Receptors, Pheromone) SB - IM MH - Animals MH - Brain Mapping MH - Cell Line MH - Dendrites/physiology MH - Genes, Reporter MH - Mice MH - Mice, Inbred C57BL MH - Mice, Transgenic MH - Neurons, Afferent/physiology/ultrastructure MH - Olfactory Bulb/cytology/*physiology MH - Olfactory Pathways/cytology/physiology MH - Protein Structure, Tertiary MH - Receptors, Pheromone/chemistry/*genetics/*metabolism MH - Smell/*physiology MH - Vomeronasal Organ/cytology/*physiology EDAT- 2006/05/30 09:00 MHDA- 2006/07/22 09:00 CRDT- 2006/05/30 09:00 PHST- 2006/02/24 00:00 [received] PHST- 2006/04/17 00:00 [revised] PHST- 2006/04/26 00:00 [accepted] PHST- 2006/05/30 09:00 [pubmed] PHST- 2006/07/22 09:00 [medline] PHST- 2006/05/30 09:00 [entrez] AID - S0896-6273(06)00370-9 [pii] AID - 10.1016/j.neuron.2006.04.033 [doi] PST - ppublish SO - Neuron. 2006 Jun 1;50(5):697-709. doi: 10.1016/j.neuron.2006.04.033.