The sea lamprey Petromyzon marinus genome reveals the early origin of several chemosensory receptor families in the vertebrate lineage |
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| Authors: | Scot Libants Kevin Carr Hong Wu John H Teeter Yu-Wen Chung-Davidson Ziping Zhang Curt Wilkerson Weiming Li |
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| Affiliation: | (1) Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI 48824, USA;(2) Research Technology Support Facility, Michigan State University, East Lansing, MI 48824, USA;(3) The Monell Chemical Sense Center, 3500 Market Street, Philadelphia, PA 19104-3308, USA |
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| Abstract: | Background In gnathostomes, chemosensory receptors (CR) expressed in olfactory epithelia are encoded by evolutionarily dynamic gene families
encoding odorant receptors (OR), trace amine-associated receptors (TAAR), V1Rs and V2Rs. A limited number of OR-like sequences
have been found in invertebrate chordate genomes. Whether these gene families arose in basal or advanced vertebrates has not
been resolved because these families have not been examined systematically in agnathan genomes. |
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