Table 1.
Numbers of T1R genes in vertebrates.
| Species | T1R1 | T1R2 | T1R3 |
|---|---|---|---|
| Mammals | |||
| Human (Homo sapiens) | 1 | 1 | 1 |
| Mouse (Mus musculus) | 1 | 1 | 1 |
| Rat (Rattus norvegicus) | 1 | 1 | 1 |
| Dog (Canis familiaris) | 1 | 1 | 1 |
| Opossum (Monodelphis domestica) | 1 | 1 | 1 |
| Pig (Sus scrofa) | 1 | 1 | |
| Horse (Equus caballus) | 0 | ||
| Giant panda (Ailuropoda melanoleuca) | 0 (1) | ||
| Bats* | 0 (1) | 1 | 1 |
| Vampire bats** | 0 (1) | 0 (1) | 0 (1) |
| Spotted seal (Phoca largha) | 0 (1) | ||
| Harbor seal (Phoca vitulina) | 0 (1) | ||
| Caspian seal (Pusa caspica) | 0 (1) | ||
| Northern elephant seal (Mirounga angustirostris) | 0 (1) | ||
| Australian sea lion (Neophoca cinerea) | 0 (1) | ||
| South American sea lion (Otaria byronia) | 0 (1) | ||
| Domestic cat (Felis silvestris catus) | 1 | 0 (1) | 1 |
| Tiger (Panthera tigris) | 0 (1) | ||
| Cheetah (Acinonyx jubatus) | 0 (1) | ||
| Asiatic lion (Panthera leo persica) | 0 (1) | ||
| Southern fur seal (Arctocephalus forsteri) | 0 (1) | ||
| Pacific harbor seal (Phoca vitulina richardii) | 0 (1) | ||
| Asian small-clawed otter (Amblonyx cinereus) | 0 (1) | ||
| Spotted hyena (Crocuta crocuta) | 0 (1) | ||
| Fossa (Cryptoprocta ferox) | 0 (1) | ||
| Banded linsang (Prionodon linsang) | 0 (1) | ||
| Bottlenose dolphin (Tursiops truncates) | 0 (1) | 0 (1) | 0 (1) |
| California sea lion (Zalophus californianus californianus) | 0 (1) | 0 (1) | 0 (1) |
| Birds | |||
| Zebra finch (Taeniopygia guttata) | 0 | ||
| Chicken (Gallus gallus) | 1 | 0 | 1 |
| Amphibian | |||
| Western clawed frog (Xenopus tropicalis) | 0 | 0 | 0 |
| Fish | |||
| Fugu (Takifugu rubripes) | 1 | 2 | 1 |
| Pufferfish (Tetraodon nigroviridis) | 1 | 3 | 1 |
| Zebrafish (Danio rerio) | 1 | 2 | 1 |
| Medaka (Oryzias latipes) | 1 | 3 | 1 |
Numbers reflect functional and putatively functional genes (pseudogenes). Partial genes are considered putatively functional. When different sources indicate different numbers of genes, the highest estimate is shown. Empty cells indicate lack of data.
*
Multiple (n=28) species, excluding vampire bats [68].
**
Three species of vampire bats [68].