Sphingobacteria (phylum)

The FCB group is a superphylum of bacteria named after the main member phyla Fibrobacteres, Chlorobi, and Bacteroidetes. The members are considered to form a clade due to a number of conserved signature indels.[2]

For Bacteroidetes class, see Sphingobacteriia.

FCB group
Bacteroides spp.
Scientific classification
Domain:
Bacteria
(unranked):
Gracilicutes
Superphylum:
FCB group
Phyla
Synonyms

Sphingobacteria Cavalier-Smith, 1987[1]

Cavalier-Smith calls the equivalent grouping a phylum by the name of Sphingobacteria. It contains the classes Chlorobea (= Chlorobi), Fibrobacteres, Bacteroidetes[lower-alpha 1] and Flavobacteria. However, this megaclassification is not followed by the larger scientific community.[3][4][5]

FCB group[2][6][7]
 FCB 
 

 Hydrogenedentes

 
 
 
 
 

 Fermentibacteria

 
 
 

 Gemmatimonadetes

 
 

 Latescibacteria

 
 
 
 
 

 Fibrobacteres

 
 
 

Delphibacteria

 
 
 
 

 Cloacimonetes

 
 

 Zixibacteria

 
 
 
 
 

 Calditrichaeota

 
 

 Marinimicrobia

 
 
Bacteroidetes/Chlorobi
 
 

 Kapabacteria

 
 
 

 Chlorobi

 
 
 

 Bacteroidetes

 
 

 Rhodothermaeota

 
 
 
 
 
 

 Ignavibacteria

 
 

 Kryptonia

 
 
 
 
 
 
 
 
 
 

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

The Bacteroidetes-Chlorobi group in brown is visible on this 2016 tree of life using ribosomal protein sequences[8]

Notes
  1. Different from the accepted Bacteroidetes, which consists of Bacteroidia (equivalent to Cavalier-Smith's Bacteroidetes), Cytophagia and Flavobacteriia and Sphingobacteriia.

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. 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.
  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.
  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. 4 (2nd ed.). New York: Springer. p. 908. ISBN 978-0-387-95042-6. British Library no. GBA561951.
  5. Classification entry in LPSN; Euzéby, J.P. (1997). "List of Bacterial Names with Standing in Nomenclature: a folder available on the Internet". International Journal of Systematic and Evolutionary Microbiology. 47 (2): 590–2. doi:10.1099/00207713-47-2-590. PMID 9103655.
  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. PMID 27058503.
  8. 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.


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