Distribution of the number of species in arCOGs: three classes of archaeal genes

<p><b>Copyright information:</b></p><p>Taken from "Clusters of orthologous genes for 41 archaeal genomes and implications for evolutionary genomics of archaea"</p><p>http://www.biology-direct.com/content/2/1/33</p><p>Biology Direct 2007;2():33-33.</p><p>Published online 27 Nov 2007</p><p>PMCID:PMC2222616.</p><p></p> A semi-logarithmic plot fitted with a sum of 3 exponent

A flow chart of the procedure employed for the construction of the arCOGs

<p><b>Copyright information:</b></p><p>Taken from "Clusters of orthologous genes for 41 archaeal genomes and implications for evolutionary genomics of archaea"</p><p>http://www.biology-direct.com/content/2/1/33</p><p>Biology Direct 2007;2():33-33.</p><p>Published online 27 Nov 2007</p><p>PMCID:PMC2222616.</p><p></p> See Materials and Methods for the description of each step

Functional breakdown of the entire set of arCOGs and the three core sets

<p><b>Copyright information:</b></p><p>Taken from "Clusters of orthologous genes for 41 archaeal genomes and implications for evolutionary genomics of archaea"</p><p>http://www.biology-direct.com/content/2/1/33</p><p>Biology Direct 2007;2():33-33.</p><p>Published online 27 Nov 2007</p><p>PMCID:PMC2222616.</p><p></p> EA, Euryarchaea, CA, Crenarchaea

Low-bound reconstructions for ancestral archaeal forms: genomes close in size to modern hyperthermophiles

<p><b>Copyright information:</b></p><p>Taken from "Clusters of orthologous genes for 41 archaeal genomes and implications for evolutionary genomics of archaea"</p><p>http://www.biology-direct.com/content/2/1/33</p><p>Biology Direct 2007;2():33-33.</p><p>Published online 27 Nov 2007</p><p>PMCID:PMC2222616.</p><p></p> Each column shows the total number of annotated protein-coding genes in the respective archaeal species; the colored portions (green for Crenarchaeota, blue for Euryarchaeota, and cyan for Nanoarchaeota) show genes included in arCOGs. The hatched columns show the number of arCOGs assigned to LACA, the Last CrenArchaeal Common Ancestor (LCACA) and the Last EuryArchaeal Common Ancestor (LEACA)