PMID- 22383629 OWN - NLM STAT- MEDLINE DCOM- 20130610 LR - 20120620 IS - 1464-3553 (Electronic) IS - 0379-864X (Linking) VI - 37 IP - 6 DP - 2012 Jul TI - Goalpha expression in the vomeronasal organ and olfactory bulb of the tammar wallaby. PG - 567-77 LID - 10.1093/chemse/bjs040 [doi] AB - The vomeronasal organ (VNO) detects pheromones via 2 large families of receptors: vomeronasal receptor 1, associated with the protein Gialpha2, and vomeronasal receptor 2, associated with Goalpha. We investigated the distribution of Goalpha in the developing and adult VNO and adult olfactory bulb of a marsupial, the tammar wallaby. Some cells expressed Goalpha as early as day 5 postpartum, but by day 30, Goalpha expressing cells were distributed throughout the receptor epithelium of the VNO. In the adult tammar, Goalpha appeared to be expressed in sensory neurons whose nuclei were mostly basally located in the vomeronasal receptor epithelium. Goalpha expressing vomeronasal receptor cells led to all areas of the accessory olfactory bulb (AOB). The lack of regionally restricted projection of the vomeronasal receptor cell type 2 in the tammar was similar to the uniform type, with the crucial difference that the uniform type only shows expression of Gialpha2 and no expression of Goalpha. The observed Goalpha staining pattern suggests that the tammar may have a third accessory olfactory type that could be intermediate to the segregated and uniform types already described. FAU - Schneider, Nanette Y AU - Schneider NY AD - The Australian Research Council Centre of Excellence in Kangaroo Genomics, Department of Zoology, The University of Melbourne, Victoria 3010, Australia. nanette@finistere-virtuell.de FAU - Fletcher, Terrence P AU - Fletcher TP FAU - Shaw, Geoff AU - Shaw G FAU - Renfree, Marilyn B AU - Renfree MB LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120301 PL - England TA - Chem Senses JT - Chemical senses JID - 8217190 RN - EC 3.6.5.1 (GTP-Binding Protein alpha Subunits, Gi-Go) SB - IM MH - Animals MH - Female MH - GTP-Binding Protein alpha Subunits, Gi-Go/analysis/*biosynthesis MH - Macropodidae/*metabolism MH - Male MH - Mice MH - Olfactory Bulb/*metabolism MH - Vomeronasal Organ/*metabolism EDAT- 2012/03/03 06:00 MHDA- 2013/06/12 06:00 CRDT- 2012/03/03 06:00 PHST- 2012/03/03 06:00 [entrez] PHST- 2012/03/03 06:00 [pubmed] PHST- 2013/06/12 06:00 [medline] AID - bjs040 [pii] AID - 10.1093/chemse/bjs040 [doi] PST - ppublish SO - Chem Senses. 2012 Jul;37(6):567-77. doi: 10.1093/chemse/bjs040. Epub 2012 Mar 1.