Table 2.
Overlapping genes conserved between species
| Human | Chimpanzee | Mouse | Rat | Chicken | Fugu | Zebrafish | |
| Human | - | 1100 | 274 | 98 | 64 | 23 | 17 |
| Chimpanzee | 477 | - | NA | NA | NA | NA | NA |
| Mouse | 146 | NA | - | 141 | 76 | 26 | 16 |
| Rat | 11 | NA | 48 | - | 45 | 19 | 6 |
| Chicken | 9 | NA | 10 | 2 | - | 22 | 13 |
| Fugu | 1 | NA | 0 | 0 | 0 | - | 13 |
| Zebrafish | 5 | NA | 5 | 0 | 0 | 1 | - |
Above diagonal shows total number of conserved overlaps, and below diagonal shows numbers of conserved exon/exon overlaps. For chimpanzee the data is provided only in relation to human, gene orthology relation between chimpanzee and other than human species is not established and annotated in the Ensemble database yet.