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Mamm Genome. 2012 Feb;23(1-2):132-43. doi: 10.1007/s00335-011-9371-1. Epub 2011 Nov 13.

Genetics of canine olfaction and receptor diversity.

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Institut de Génétique et Développement de Rennes, UMR6061 CNRS Université de Rennes 1, Faculté de Médecine, 2 avenue Prof. Léon Bernard, CS34317, 35043 Rennes Cedex, France.


Olfaction is a particularly important sense in the dog. Humans selected for this capacity during the domestication process, and selection has continued to be employed to enhance this ability. In this review we first describe the different olfactory systems that exist and the different odorant receptors that are expressed in those systems. We then focus on the dog olfactory receptors by describing the olfactory receptor gene repertoire and its polymorphisms. Finally, we discuss the different uses of dog olfaction and the questions that still need to be studied.

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