The Review for Olfactory Receptor Genes


Mammals use the olfactory system as one of the basic instincts to avoid dangers and search for food. Many researches showed olfactory receptors (ORs) in mammals are encoded by the largest multigene family. Beside it has been suggested that the activation of ORs also have the links to reproductive and immune systems. Understanding the operation mechanism of OR system could lead to the way to improve the human’s life quality as well as to develop some better strategies in the livestock industry. Our report here revealed the almost complete data sets of the current OR genes from NCBI database. Although the number of functional OR genes in pigs (1,113) and cows (881) are lower than rats (1,201) and mice (1,037) as well, they are still relatively high and should be highly considered for further application in the livestock industry, especially in the process to produce the best and suitable food for them. The most important aspect is this data could contribute as the available data to get more understanding in the evolutionary process of species through the environment condition changed.


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