Distinct gene set in two different lineages of ammonia-oxidizing archaea supports the phylum Thaumarchaeota

Autor(en)
Anja Spang, Roland Hatzenpichler, Celine Brochier-Armanet, Thomas Rattei, Patrick Tischler, Eva Spieck, Wolfgang Streit, David A. Stahl, Michael Wagner, Christa Schleper
Abstrakt

Globally distributed archaea comprising ammonia oxidizers of moderate terrestrial and marine environments are considered the most abundant archaeal organisms on Earth. Based on 16S rRNA phylogeny, initial assignment of these archaea was to the Crenarchaeota. By contrast, features of the first genome sequence from a member of this group suggested that they belong to a novel phylum, the Thaumarchaeota. Here, we re-investigate the Thaumarchaeota hypothesis by including two newly available genomes, that of the marine ammonia oxidizer Nitrosopumilus maritimus and that of Nitrososphaera gargensis, a representative of another evolutionary lineage within this group predominantly detected in terrestrial environments. Phylogenetic studies based on r-proteins and other core genes, as well as comparative genomics, confirm the assignment of these organisms to a separate phylum and reveal a Thaumarchaeota-specific set of core informational processing genes, as well as potentially ancestral features of the archaea.

Organisation(en)
Externe Organisation(en)
Université de Provence Aix-Marseille I, Technische Universität München, Universität Hamburg, University of Washington
Journal
Trends in Microbiology
Band
18
Seiten
331-340
Anzahl der Seiten
10
ISSN
0966-842X
DOI
https://doi.org/10.1016/j.tim.2010.06.003
Publikationsdatum
2010
Peer-reviewed
Ja
ÖFOS 2012
Molekularbiologie, Bioinformatik
Link zum Portal
https://ucris.univie.ac.at/portal/de/publications/distinct-gene-set-in-two-different-lineages-of-ammoniaoxidizing-archaea-supports-the-phylum-thaumarchaeota(1eb9ff5f-2dfe-48ed-acaf-20bb28774451).html