All translations

About half of the
shared genes (866 genes) appear to be specific for the
Sulfolobales

With about 1660 protein coding genes (62%) shared
by all three Sulfolobus genomes, the size of the
genomic core of the Sulfolobales equals that of the
Pyrococcales (see below), although Sulfolobales are
phylogenetically more diverse then Pyrococcales

More than half of the completed archaeal genome
sequences originate from extreme thermophiles (Topt
75–90°C and hyperthermophiles (Topt≥90°C).