Biology:Microgenomates

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The Microgenomatota or Microgenomates are a proposed supergroup of bacterial candidate phyla in the Candidate Phyla Radiation.

Organisms from the Microgenomates group have never been cultured in a lab; rather they have only been detected in the environment through genetic sequencing.

The Microgenomates group was originally discovered from sequences retrieved from the Yellowstone National Park hot spring "Obsidian Pool" and named OP11.[1]

The group was later split into the additional bacterial phyla Absconditabacteria (SR1) and Parcubacteria (OD1)[2] and then into over 11 more bacterial phyla,[3][4] including Curtisbacteria, Daviesbacteria, Levybacteria, Gottesmanbacteria, Woesebacteria, Amesbacteria, Shapirobacteria, Roizmanbacteria, Beckwithbacteria, Collierbacteria, Pacebacteria.

Phylogeny

120 marker proteins based GTDB 10-RS226[5][6][7]
"Microgenomatia"

"Woykebacterales" (CG2-30-54-11)

"Curtissbacterales"

"Daviesbacterales"

"Roizmanbacterales" (UBA1406)

"Gottesmanbacterales" (UBA10105)

"Levybacterales"

"Shapirobacterales" (UBA12405)

GWA2‑44‑7

"Amesbacteraceae"

"Blackburnbacteraceae" (UBA10165)

"Woesebacteraceae" (UBA8517)

"Chazhemtobacteriales"

"Beckwithbacteraceae" (CG1-02-47-37)

"Collierbacteraceae" (UBA12108)

"Chazhemtonibacteraceae"

"Chisholmbacteraceae"

"Cerribacteraceae" (UBA12028)

"Pacebacteraceae" (PJMF01)

Taxonomy

The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN)[8] and National Center for Biotechnology Information (NCBI).[9]

Clade "Candidate Phyla Radiation" group

  • Phylum Minisyncoccota Nakajima et al. 2025
    • Clade "Microgenomates" cluster
      • Class "Microgenomatia" Herrmann et al. 2019
        • Genus "Candidatus Microgenomatus" Rinke et al. 2013
          • Species "Ca. Microgenomatus auricola" Rinke et al. 2013
        • Order "Roizmanbacterales" [UBA1406]
          • Family "Laneganaceae" Pallen, Rodriguez-R & Alikhan 2022 [GWC2-37-13]
            • Genus "Roizmanbacterium" Geesink et al. 2020
        • Order "Chazhemtobacteriales" (sic) Pallen, Rodriguez-R & Alikhan 2022 [UBA1400]
          • Family "Chazhemtonibacteriaceae" Kadnikov et al. 2020 corrig. Oren & Garrity 2022
            • Genus "Candidatus Chazhemtonibacterium" Kadnikov et al. 2020 corrig. Oren & Garrity 2022
              • Species "Ca. Chazhemtonibacterium aquaticum" Kadnikov et al. 2020 corrig. Oren & Garrity 2022

References

  1. Hugenholtz, Philip; Pitulle, Christian; Hershberger, Karen L.; Pace, Norman R. (January 1998). "Novel Division Level Bacterial Diversity in a Yellowstone Hot Spring". Journal of Bacteriology 180 (2): 366–376. doi:10.1128/JB.180.2.366-376.1998. ISSN 0021-9193. PMID 9440526. 
  2. Harris, J. Kirk; Kelley, Scott T.; Pace, Norman R. (February 2004). "New Perspective on Uncultured Bacterial Phylogenetic Division OP11". Applied and Environmental Microbiology 70 (2): 845–849. doi:10.1128/AEM.70.2.845-849.2004. ISSN 0099-2240. PMID 14766563. Bibcode2004ApEnM..70..845H. 
  3. Brown, Christopher T.; Hug, Laura A.; Thomas, Brian C.; Sharon, Itai; Castelle, Cindy J.; Singh, Andrea; Wilkins, Michael J.; Wrighton, Kelly C. et al. (July 2015). "Unusual biology across a group comprising more than 15% of domain Bacteria" (in en). Nature 523 (7559): 208–211. doi:10.1038/nature14486. ISSN 1476-4687. PMID 26083755. Bibcode2015Natur.523..208B. https://www.nature.com/articles/nature14486. 
  4. Anantharaman, Karthik; Brown, Christopher T.; Hug, Laura A.; Sharon, Itai; Castelle, Cindy J.; Probst, Alexander J.; Thomas, Brian C.; Singh, Andrea et al. (December 2016). "Thousands of microbial genomes shed light on interconnected biogeochemical processes in an aquifer system" (in en). Nature Communications 7 (1). doi:10.1038/ncomms13219. ISSN 2041-1723. PMID 27774985. Bibcode2016NatCo...713219A. 
  5. "GTDB release 10-RS226". https://gtdb.ecogenomic.org/about#4%7C. 
  6. "bac120_r226.sp_label". https://data.gtdb.ecogenomic.org/releases/release226/226.0/auxillary_files/bac120_r226.sp_labels.tree. 
  7. "Taxon History". https://gtdb.ecogenomic.org/taxon_history/. 
  8. Template:Lpsn3
  9. Schoch CL. "Microgenomates group". National Center for Biotechnology Information (NCBI) taxonomy database. https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?command=show&mode=tree&id=1794810&lvl=3. Retrieved 2025-06-05. 

Wikidata ☰ Q26996947 entry