Categorization of Conserved Genes From the Viewpoint of Octopus Eye Genes
Categories | Vertebrate | Ciona | Insects | Worm | Total |
|---|---|---|---|---|---|
| Common genesa | 646 | 646 | 646 | 646 | 646 |
| Vertebrate-specific genesb | 57 | — | — | — | 57 |
| Ciona-specific genesb | — | 20 | — | — | 20 |
| Deutoromes-specific genesb | 35 | 35 | — | — | 35 |
| Lost genes only in vertebratec | — | 0 | 0 | 0 | 0 |
| Lost genes only in Cionac | 38 | — | 38 | 38 | 38 |
| Lost genes only in insectsc | 19 | 19 | — | 19 | 19 |
| Lost genes only in wormc | 104 | 104 | 104 | — | 104 |
| Lost genes in Ciona and wormc | 35 | — | 35 | — | 35 |
| Lost genes in vertebrate and insectsc | — | 4 | — | 4 | 4 |
| Lost genes in Ciona and insectsc | 7 | — | — | 7 | 7 |
| Lost genes in vertebrate and wormc | — | 6 | 6 | — | 6 |
| Conserved genes in out-group of bilateriad | — | — | — | — | 48 |
| Conserved genes from ancestral gene set | 941 | 834 | 829 | 714 | 1019 |
| Shared genes between octopus and insectse | — | — | 19 | — | 19 |
| Shared genes between octopus and worme | — | — | — | 7 | 7 |
| Shared genes in Protostomes lineagee | — | — | 7 | 7 | 7 |
| Shared genes between octopus and other species | 94 | 834 | 855 | 728 | 1052 |
a Common genes are 646 genes that were shared by all species examined.
b Specific genes: some of these are genes conserved only in specific lineages, and especially 57 from vertebrate-specific genes, may have been related to the camera eye.
c Lost genes are genes that have been lost in the specific lineages.
d Conserved genes in out-group of bilateria are genes matched to proteins belonging to the out-group of bilaterian species but that do not match to proteins belonging to bilaterian species.
e These categories are not included in the ancestral gene set because they seem to have emerged after the divergence of protostomes and deuterostomes.