FCB superphylum

FCB
Bacteroides spp.
Scientific classification Edit this classification
Domain: Bacteria
Kingdom: Pseudomonadati
Superphylum: "FCB"
Phyla
Synonyms

Sphingobacteria Cavalier-Smith, 1987

The FCB is a proposed superphylum of bacteria named after the main member phyla Fibrobacterota, Chlorobiota, and Bacteroidota. The members are considered to form a clade due to a number of conserved signature indels.

Cavalier-Smith calls the equivalent grouping a phylum by the name of Sphingobacteria. It contains the classes Chlorobiota, Fibrobacterota, Bacteroidota, and Flavobacteria. However, this megaclassification is not followed by the larger scientific community.

FCB group 16S rRNA based LTP_07_2026 120 marker proteins based GTDB 11-RS232
"FCB"
"FCB"

"Hinthialibacterota" (OLB16)

"Tangaroaeota" (RBG-13-66-14; Coatesbacteria)

"Edwardsiibacteriota"

Caldifarciminota [incl. "Hydrothermota"; "Caldipriscota"; "Stahliibacteriota" ]

"Fermentibacterota" [incl. "Aegiribacterota"]

"Cloacimonadota"

"Eiseniibacteriota"

"Joyebacterota" [incl. "Effluvivivacota"]

"Krumholzibacteriota" [incl. "Delphinibacteriota"]

Gemmatimonadota [incl. "Glassiibacteriota"]

"Latescibacterota" [incl. "Handelsmaniibacteriota"]

"Blakebacterota"

"Zixiibacteriota"

"Delongiibacteriota" (UBA4055)

Fibrobacterota [incl. "Raymondiibacteriota"]

"Electryoneota" (AABM5-125-24)

Fidelibacterota [incl. "Marinisomatota"]

"Zhuqueibacterota" [incl. "Cosmopoliota"]

Calditrichota

Bacteroidota [incl. Chlorobiota; Balneolota; Ignavibacteriota; "Kapaibacteriota"; "Kryptoniota"; Rhodothermota]

An analogous situation is seen with the PVC group/Planctobacteria.

The Bacteroidota–Chlorobiota group in brown is visible on this 2016 tree of life using ribosomal protein sequences

See also

References

  1. ↑ Cavalier-Smith, T. (1987). The origin of cells: a symbiosis between genes, catalysts and membranes. Cold Spring Harbor Symposia on Quantitative Biology 52, 805-24, , .
  2. 1 2 Gupta, R. S. (2004). "The Phylogeny and Signature Sequences Characteristics of Fibrobacteres, Chlorobi, and Bacteroidetes". Critical Reviews in Microbiology. 30 (2): 123–143. doi:10.1080/10408410490435133. PMID 15239383. S2CID 24565648.
  3. ↑ Cavalier-Smith T (2006). "Rooting the tree of life by transition analyses". Biol. Direct. 1: 19. doi:10.1186/1745-6150-1-19. PMC 1586193. PMID 16834776. Archived from the original on 2019-12-18. Retrieved 2010-11-29.
  4. ↑ Krieg, N.R.; Ludwig, W.; Whitman, W.B.; Hedlund, B.P.; Paster, B.J.; Staley, J.T.; Ward, N.; Brown, D.; Parte, A. (November 24, 2010) [1984(Williams & Wilkins)]. George M. Garrity (ed.). The Bacteroidetes, Spirochaetes, Tenericutes (Mollicutes), Acidobacteria, Fibrobacteres, Fusobacteria, Dictyoglomi, Gemmatimonadetes, Lentisphaerae, Verrucomicrobia, Chlamydiae, and Planctomycetes. Bergey's Manual of Systematic Bacteriology. Vol. 4 (2nd ed.). New York: Springer. p. 908. ISBN 978-0-387-95042-6. British Library no. GBA561951.
  5. ↑ Classification in LPSN; Parte, Aidan C.; Sardà Carbasse, Joaquim; Meier-Kolthoff, Jan P.; Reimer, Lorenz C.; Göker, Markus (1 November 2020). "List of Prokaryotic names with Standing in Nomenclature (LPSN) moves to the DSMZ". International Journal of Systematic and Evolutionary Microbiology. 70 (11): 5607–5612. doi:10.1099/ijsem.0.004332.
  6. ↑ Emiley A Eloe-Fadrosh et al. 2017, Global metagenomic survey reveals a new bacterial candidate phylum in geothermal springs. Nature Communications 7 · January 2016 DOI: 10.1038/ncomms1047
  7. ↑ Kirkegaard, Rasmus Hansen; Dueholm, Morten Simonsen; McIlroy, Simon Jon; Nierychlo, Marta; Karst, Søren Michael; Albertsen, Mads; Nielsen, Per Halkjær (October 2016). "Genomic insights into members of the candidate phylum Hyd24-12 common in mesophilic anaerobic digesters". The ISME Journal. 10 (10): 2352–2364. doi:10.1038/ismej.2016.43. ISSN 1751-7370. PMC 5030696. PMID 27058503.
  8. ↑ "The LTPlus". The All-Species Living Tree Project. Retrieved 1 August 2026.
  9. ↑ "LTP_all tree in newick format". The All-Species Living Tree Project. Retrieved 1 August 2026.
  10. ↑ Rossello-Mora, Ramon; Viver, Tomeu; Palmer-Rodríguez, Pere; Westram, Ralf; Bustos-Caparros, Esteban; Gago, Joan Francisco; Gonzalez-Mendez, Jaime; Llabrés, Mercè; Ludwig, Wolfgang; Amann, Rudolf (22 April 2026). "A pipeline for improved 16S rRNA gene-based phylogeny and diversity analyses of Bacteria and Archaea". Nature Portfolio. doi:10.21203/rs.3.rs-9370187/v1.
  11. ↑ "GTDB release 11-RS232". Genome Taxonomy Database. Retrieved 1 May 2026.
  12. ↑ "bac120_r232.sp_label". Genome Taxonomy Database. Retrieved 1 May 2026.
  13. ↑ "Taxon History". Genome Taxonomy Database. Retrieved 1 May 2026.
  14. ↑ Hug, Laura A.; Baker, Brett J.; Anantharaman, Karthik; Brown, Christopher T.; Probst, Alexander J.; Castelle, Cindy J.; Butterfield, Cristina N.; Hernsdorf, Alex W.; Amano, Yuki; Ise, Kotaro; Suzuki, Yohey; Dudek, Natasha; Relman, David A.; Finstad, Kari M.; Amundson, Ronald; Thomas, Brian C.; Banfield, Jillian F. (11 April 2016). "A new view of the tree of life". Nature Microbiology. 1 (5): 16048. doi:10.1038/nmicrobiol.2016.48. PMID 27572647.