Selenomonadaceae

Selenomonadaceae
Scientific classification Edit this classification
Domain: Bacteria
Kingdom: Bacillati
Phylum: Bacillota
Class: Negativicutes
Order: Selenomonadales
Family: Selenomonadaceae
Campbell et al. 2015[1]
Type genus
Selenomonas
von Prowazek 1913 (Approved Lists 1980)
Genera[1]

The Selenomonadaceae are a family of Gram-negative, anaerobic, non-spore-forming, rod-shaped bacteria in the order Selenomonadales and class Negativicutes.[2] Members of the family occur in animal-associated and environmental habitats, including the gastrointestinal tract, oral cavity, wastewater, and brewery environments.[2]

Taxonomy

The family was established during a genome-based reorganization of the class Negativicutes that separated its members among the orders Selenomonadales, Acidaminococcales, and Veillonellales.[3] Its nomenclatural type is the genus Selenomonas.[1]

A subsequent phylogenomic reassessment found that several species then classified in Selenomonas belonged to distinct genus-level lineages. Among the resulting changes, species were transferred to Centipeda and the newly established genera Dongibacter, Pseudoselenomonas, Schleiferibacter, and Wylensekiella.[2] LPSN recognizes 12 genera with validly published and correct names in the family.[1]

Phylogeny

The nomenclature and family membership shown below follow LPSN. The branching order was derived from the 120-marker-protein bacterial tree of GTDB release R11-RS232, using one represented species for each genus and displaying only the genus names.[4][5]

120-marker-protein phylogeny based on GTDB R11-RS232[4][5]
Selenomonadaceae

Pseudoselenomonas

Wylensekiella

Mitsuokella

Dongibacter

Centipeda

Selenomonas

Anaerovibrio

Schwartzia

Propionispira

References

  1. 1 2 3 4 "Family: Selenomonadaceae". List of Prokaryotic names with Standing in Nomenclature. Leibniz Institute DSMZ. Retrieved 16 August 2026.
  2. 1 2 3 Heng, Yu Chyuan; Kittelmann, Sandra (28 May 2026). "Taxonomic reclassification and expansion of the family Selenomonadaceae". International Journal of Systematic and Evolutionary Microbiology. 76 (5) 007178. doi:10.1099/ijsem.0.007178.
  3. ↑ Campbell, Christopher; Adeolu, Mobolaji; Gupta, Radhey S. (2015). "Genome-based taxonomic framework for the class Negativicutes: division of the class Negativicutes into the orders Selenomonadales emend., Acidaminococcales ord. nov. and Veillonellales ord. nov". International Journal of Systematic and Evolutionary Microbiology. 65 (Pt 9): 3203–3215. doi:10.1099/ijs.0.000347.
  4. 1 2 "About GTDB". Genome Taxonomy Database. Retrieved 16 August 2026.
  5. 1 2 "bac120_r232.sp_labels.tree". Genome Taxonomy Database. Retrieved 16 August 2026.