Relationship between members of the universal and nonuniversal subsets of the euryarchaeal COGs from M. jannaschii and A. fulgidus and their bacterial and eukaryotic homologs (1) M. jannaschii, the universal subset; (2) M. jannaschii, the nonuniversal subset; (3) A. fulgidus, the universal subset; (4) A. fulgidus, the nonuniversal subset. (Bacterial) Reliable best hits to bacterial proteins; (eukaryotic) reliable best hits to eukaryotic proteins. A reliable best hit was defined as one with an e-value at least 10000 times lower than that for the other divisions (eukaryotic or bacteria, respectively). Only the hits with e-values <0.001 were analyzed. (Red bars) Bacterial; (blue bars) eukaryotic; (yellow bars) uncertain.
