Table 1. Organism coverage of the major resources providing orthology.
| Number of genomes | |||||
|---|---|---|---|---|---|
| Database | Total | Bacteria | Eukaryotes | Orthology levels | Availability |
| OrthoDB.v8 | 3028 | 2627 | 401 | 270 | GUI, data, software |
| eggNOG.v4 | 3686 | 2031a | 238 | 107 | GUI, data |
| KEGG-OC | 3098 | 2675 | 256 | n.a. | GUI |
aUsed to define orthologous groups.