From: A unified nomenclature for vertebrate olfactory receptors
| Species | Genes | Pseudogenes | Total | Genome |
|---|---|---|---|---|
| chimpanzee | 396 | 427 | 823 | PanTro4 |
| orangutan | 321 | 466 | 787 | PonAbe2 |
| dog | 803 | 206 | 1009 | CanFam3 |
| cow | 1110 | 695 | 1805 | BosTau8 |
| horse | 1101 | 1372 | 2473 | EquCab2 |
| mouse | 1142 | 247 | 1389 | Mm10 |
| rat | 1333 | 457 | 1790 | Rn6 |
| zebrafish | 158 | 14 | 172 | DanRer10 |
| Total | 6365 | 3884 | 10,249 |