Table 6. Matrix statistics for maximum likelihood analysis.

The first column is the taxonomic group. The second column is the minimum number of species that must include an ortholog annotation for it to be included in the matrix. The third column is the number of orthologs with the minimum number of species annotations. The fourth column is the number of nucleotide characters in the combined alignment of all orthologs included in the analysis.

Taxonomic Group	Minimum number of species with ortholog	Number of orthologs in super-matrix	Characters in super-matrix
Archaea	95	45	62,442
Fungi	5	648	1,403,618
Invertebrates	5	20	17,665
Plants	40	75	87,764
Protozoa	5	200	411,028
Mammals	97	18	24,767
Other vertebrates	108	28	30,900