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Olfactory Receptor Genes: Evolution

  1. Yoshihito Niimura

Published Online: 14 MAR 2008

DOI: 10.1002/9780470015902.a0020789



How to Cite

Niimura, Y. 2008. Olfactory Receptor Genes: Evolution. eLS. .

Author Information

  1. Tokyo Medical and Dental University, Tokyo, Japan

Publication History

  1. Published Online: 14 MAR 2008

This is not the most recent version of the article. View current version (15 AUG 2014)


There are ∼1000 olfactory receptor genes in mammals, forming the largest multigene family. Identification of the entire repertoires of olfactory receptor genes from various species and extensive phylogenetic analyses revealed dynamic change of this gene family in evolution.


  • olfactory receptor;
  • chemosensory receptor;
  • phylogenetic analysis;
  • multigene family;
  • birth-and-death evolution