›› 2011, Vol. 38 ›› Issue (5): 66-69.

• 生理生化 • Previous Articles     Next Articles

Research Advances on Molecular Evolution and Signal Transduction of Odorant Receptor of Insects

ZHANG Chun-xiang, JIANG Yu-suo   

  1. College of Animal Science and Veterinary Medicine,Shanxi Agricultural University,Taigu 030801,China
  • Received:2010-10-08 Revised:1900-01-01 Online:2011-05-20 Published:2011-05-20

Abstract: Odorant receptors (Or) is of vital importance for insects to find food,identity mates,and avoid dangers. The evolution of odorant receptor family genes is closely related with the adaption to the different environment. Or gene shows multimodal molecular evolution patterns with changes in their genic structure,chromosomal position and duplication. By these evolutions insect can gain new functions or loss some functions. Membrane topology of Or83 shows an inverted orientation with the G-protein-coupled receptor. Or transduce odorant signal by both heteromeric ligand-gated ion channels and cyclic-nucleotide-activated cation channels,therefore,they can response rapidly,transiently,sensitively and efficiently to odorant.

Key words: insect; Odorant receptor(Or); molecular evolution; signal transduction

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