Aigarchaeota

Aigarchaeota
Scientific classification
Domain:	Archaea
Kingdom:	Thermoproteati
Phylum:	Augarchaeota corrig. Nunoura et al. 2011
Order
"Caldarchaeales"
Synonyms
Aigarchaeota Nunoura et al. 2011

The "Aigarchaeota" are a proposed archaeal phylum of which the main representative is Caldiarchaeum subterraneum . ^[1] It is not yet clear if this represents a new phylum or a Nitrososphaerota order, since the genome of Caldiarchaeum subterraneum encodes several Nitrososphaerota-like features. ^[2] The name "Aigarchaeota" comes from the Greek αυγή, avgí, meaning "dawn" or "aurora", for the intermediate features of hyperthermophilic and mesophilic life during the evolution of its lineage. ^[1]

Taxonomy

Phylogeny of Caldarchaeales [3] [4] [5]

"Calditenuaceae" "Ca. Calditenuis aerorheumatis" "Caldarchaeaceae" "Ca. Caldarchaeum subterraneum" "Wolframiiraptoraceae" "Ca.  Terraquivivens" "Ca. T. ruidianensis" "Ca. T. tikiterensis" "Ca. T. tengchongensis" "Ca. T. yellowstonensis" "Ca.  Geocrenenecus" "Ca. G. dongiae" "Ca. G. arthurdayi" "Ca. G. huangii" "Ca. Benthortus lauensis" "Ca.  Wolframiiraptor" "Ca. W. sinensis" "Ca. W. allenii" "Ca. W. gerlachensis"

• Family "Caldarchaeales" corrig. Rinke et al. 2020 ^[6] ["Aigarchaeales"]
  • Family "Calditenuaceae" Balbay et al. 2023
    • Genus "Candidatus Calditenuis" Beam et al. 2016
      • "Ca. C. aerorheumatis" corrig. Beam et al. 2016
      • "Ca. C. fumarioli" Balbay et al. 2023
  • Family "Caldarchaeaceae" Rinke et al. 2020
    • Genus "Candidatus Caldarchaeum" corrig. Nunoura et al. 2011 ^{[7] [8]}
      • "Ca. C. subterraneum" corrig. Nunoura et al. 2011
    • Genus "Candidatus Pelearchaeum" Balbay et al. 2023
      • "Ca. P. maunauluense" Balbay et al. 2023
  • Family "Wolframiiraptoraceae" Buessecker et al. 2022
    • Genus "Candidatus Benthortus" Buessecker et al. 2022
      • "Ca. B. lauensis" Buessecker et al. 2022
    • Genus "Candidatus Geocrenenecus" Buessecker et al. 2022
      • "Ca. G. arthurdayi" Buessecker et al. 2022
      • "Ca. G. dongiae" Buessecker et al. 2022
      • "Ca. G. huangii" Buessecker et al. 2022
    • Genus "Candidatus Terraquivivens" Buessecker et al. 2022
      • "Ca. T. ruidianensis" Buessecker et al. 2022
      • "Ca. T. tengchongensis" Buessecker et al. 2022
      • "Ca. T. tikiterensis" Buessecker et al. 2022
      • "Ca. T. yellowstonensis" Buessecker et al. 2022
    • Genus "Candidatus Wolframiiraptor" Buessecker et al. 2022
      • "Ca. W. allenii" Buessecker et al. 2022
      • "Ca. W. gerlachensis" Buessecker et al. 2022
      • "Ca. W. sinensis" Buessecker et al. 2022

See also

• List of Archaea genera

References

1. Nunoura, T; Takaki, Y; Kakuta, J; Nishi, S; Sugahara, J; Kazama, H; Chee, GJ; Hattori, M; Kanai, A; Atomi, H; Takai, K; Takami, H (April 2011). "Insights into the evolution of Archaea and eukaryotic protein modifier systems revealed by the genome of a novel archaeal group". Nucleic Acids Research. 39 (8): 3204–23. doi:10.1093/nar/gkq1228. PMC   3082918 . PMID   21169198..
2. Brochier-Armanet, Celine; Forterre, Patrick; Gribaldo, Simonetta (June 2011). "Phylogeny and evolution of the Archaea: One hundred genomes later". Current Opinion in Microbiology. 14 (3): 274–281. doi:10.1016/j.mib.2011.04.015. PMID   21632276..
3. "GTDB release 09-RS220". Genome Taxonomy Database . Retrieved 10 May 2024.
4. "ar53_r220.sp_label". Genome Taxonomy Database . Retrieved 10 May 2024.
5. "Taxon History". Genome Taxonomy Database . Retrieved 10 May 2024.
6. (2020) Christian Rinke, Maria Chuvochina, Aaron J. Mussig, Pierre-Alain Chaumeil, Adrian A. Davin, David W. Waite, William B Whitman, Donovan H. Parks, Philip Hugenholtz, Resolving widespread incomplete and uneven archaeal classifications based on a rank-normalized genome-based taxonomy
7. Sayers; et al. "Thaumarchaeota". National Center for Biotechnology Information (NCBI) taxonomy database. Retrieved 2021-06-05.
8. "GTDB release 06-RS202". Genome Taxonomy Database .

Further reading

• Martijan, Joran; Ettema, Thijs J. G. (February 2013). "From archaeon to eukaryote: the evolutionary dark ages of the eukaryotic cell". Biochemical Society Transactions. 41 (Part 1): 451–457. doi:10.1042/BST20120292. PMID   23356327.
• Meng, Jun; Xu, Jun; Qin, Dan; He, Ying; Xiao, Xiang; Wang, Fengping (March 2014). "Genetic and functional properties of uncultivated MCG archaea assessed by metagenome and gene expression analyses". The ISME Journal. 8 (3): 650–659. doi:10.1038/ismej.2013.174. PMC   3930316 . PMID   24108328.
• Yutin, Natalya; Koonin, Eugene V. (April 2014). "The Dispersed Archaeal Eukaryome and the Complex Archaeal Ancestor of Eukaryotes". Cold Spring Harbor Perspectives in Biology. 6 (4): a016188. doi:10.1101/cshperspect.a016188. PMC   3970416 . PMID   24691961.