|Number of common or unique olfactory receptor genes among pig, human, mouse, and dog olfactory receptor repertoires|
|Species sharing the same OR gene clusters||Number of OR genes belonging to the species common clusters|
|Pig, human, mouse, dog||341||179||255||228|
|Pig, mouse, dog||239||-||172||181|
|Pig, human, dog||78||61||-||62|
|Pig, human, mouse||82||37||55||-|
|Human, mouse, dog||-||38||46||45|
Note: Sequences with more than 60% of amino acid sequence identity were clustered together. Outliers with significant sequence difference from the rest of ORs were excluded from the results.
Nguyen et al.
Nguyen et al. BMC Genomics 2012 13:584 doi:10.1186/1471-2164-13-584