Bedoukian   RussellIPM   RussellIPM   Piezoelectric Micro-Sprayer


Home
Animal Taxa
Plant Taxa
Semiochemicals
Floral Compounds
Semiochemical Detail
Semiochemicals & Taxa
Synthesis
Control
Invasive spp.
References

Abstract

Guide

Alphascents
Pherobio
InsectScience
E-Econex
Counterpart-Semiochemicals
Print
Email to a Friend
Kindly Donate for The Pherobase

« Previous AbstractCounteractive control of polarized morphogenesis during mating by mitogen-activated protein kinase Fus3 and G1 cyclin-dependent kinase    Next AbstractAdsorption of VOCs on reduced graphene oxide »

Mol Biol Evol


Title:"Characterization of TRPC2, an essential genetic component of VNS chemoreception, provides insights into the evolution of pheromonal olfaction in secondary-adapted marine mammals"
Author(s):Yu L; Jin W; Wang JX; Zhang X; Chen MM; Zhu ZH; Lee H; Lee M; Zhang YP;
Address:"Laboratory for Conservation and Utilization of Bio-resource and Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, People's Republic of China. yuli1220@yahoo.com.cn"
Journal Title:Mol Biol Evol
Year:2010
Volume:20100208
Issue:7
Page Number:1467 - 1477
DOI: 10.1093/molbev/msq027
ISSN/ISBN:1537-1719 (Electronic) 0737-4038 (Linking)
Abstract:"Pheromones are chemical cues released and sensed by individuals of the same species, which are of major importance in regulating reproductive and social behaviors of mammals. Generally, they are detected by the vomeronasal system (VNS). Here, we first investigated and compared an essential genetic component of vomeronasal chemoreception, that is, TRPC2 gene, of four marine mammals varying the degree of aquatic specialization and related terrestrial species in order to provide insights into the evolution of pheromonal olfaction in the mammalian transition from land to water. Our results based on sequence characterizations and evolutionary analyses, for the first time, show the evidence for the ancestral impairment of vomeronasal pheromone signal transduction pathway in fully aquatic cetaceans, supporting a reduced or absent dependence on olfaction as a result of the complete adaptation to the marine habitat, whereas the amphibious California sea lion was found to have a putatively functional TRPC2 gene, which is still under strong selective pressures, reflecting the reliance of terrestrial environment on chemical recognition among the semiadapted marine mammals. Interestingly, our study found that, unlike that of the California sea lion, TRPC2 genes of the harbor seal and the river otter, both of which are also semiaquatic, are pseudogenes. Our data suggest that other unknown selective pressures or sensory modalities might have promoted the independent absence of a functional VNS in these two species. In this respect, the evolution of pheromonal olfaction in marine mammals appears to be more complex and confusing than has been previously thought. Our study makes a useful contribution to the current understanding of the evolution of pheromone perception of mammals in response to selective pressures from an aquatic environment"
Keywords:"Amino Acid Sequence Animals *Biological Evolution Genome Mammals/*genetics Molecular Sequence Data Pheromones/*physiology Phylogeny Sequence Homology, Amino Acid Smell/*physiology TRPC Cation Channels/classification/*genetics *Vomeronasal Organ;"
Notes:"MedlineYu, Li Jin, Wei Wang, Jia-xin Zhang, Xin Chen, Meng-meng Zhu, Zhou-hai Lee, Hang Lee, Muyeong Zhang, Ya-ping eng Research Support, Non-U.S. Gov't 2010/02/10 Mol Biol Evol. 2010 Jul; 27(7):1467-77. doi: 10.1093/molbev/msq027. Epub 2010 Feb 8"

 
Back to top
 
Citation: El-Sayed AM 2024. The Pherobase: Database of Pheromones and Semiochemicals. <http://www.pherobase.com>.
© 2003-2024 The Pherobase - Extensive Database of Pheromones and Semiochemicals. Ashraf M. El-Sayed.
Page created on 26-12-2024