Table 1.

Coverage of genomic diversity by the largest orthology resources

	OrthoDB	KEGG-OC	eggNOG	OMA
Eukaryota	1271	394	238	383
- Metazoa	448	n.a.	89	156
— Vertebrata	243	n.a.	51	71
— Arthropoda	170	n.a.	22	52
- Viridiplantae	117	n.a.	23	54
- Fungi	549	n.a.	85	107
Bacteria	5609	4301	1678a	1635
Archaea	404	253	115	149
Viruses	6488	0	352	0

^aPlus 1655 additional bacteria were subsequently mapped.