Phylogenetic Trees Showing the Relationships Among Archaea Species
Phylogenetic Trees
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A phylogenetic tree for the archaea based on concatenated sequences for 31 universally conserved proteins is shown below (left panel) [1]. In this tree, the Crenarchaeota species are distinguished from the Euryarchaeota, while the position of Nanoarchaeum equitans, is not resolved. Within Euryarchaeota, the various methanogenic archaea are split into 2-3 clusters and it is unclear how they are related or have evolved [2;3].
Selected References:
- Gao B, Gupta RS. Phylogenomic analysis of proteins that are distinctive of Archaea and its main subgroups and the origin of methanogenesis. BMC Genomics 2007; 8:86.
- Gribaldo S, Brochier-Armanet C. The origin and evolution of Archaea: a state of the art. Philos Trans R Soc Lond B Biol Sci 2006; 361(1470):1007-1022.
- Bapteste E, Brochier C, Boucher Y. Higher-level classification of the Archaea: evolution of methanogenesis and methanogens. Archaea 2005; 1(5):353-363.
Citation for this webpage:
Bacterial (Prokaryotic) Phylogeny Webpage (April 2007). http://www.bacterialphylogeny.com/index.html