Aliarcobacter, Halarcobacter, Malaciobacter, Pseudarcobacter and Poseidonibacter are later synonyms of Arcobacter : transfer of Poseidonibacter parvus, Poseidonibacter antarcticus, ‘Halarcobacter arenosus’, and ‘Aliarcobacter vitoriensis’ to Arcobacter as Arcobacter parvus comb. nov., Arcobacter antarcticus comb. nov., Arcobacter arenosus comb. nov. and Arcobacter vitoriensis comb. nov.

This paper re-examines the taxonomic positions of recently described Poseidonibacter (P. parvum and P. antarcticus), Aliarco-bacter ('Al. vitoriensis'), Halarcobacter ('H. arenosus') and Arcobacter (A. caeni, A. lacus) species, and other species proposed to represent novel genera...

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Bibliographic Details
Published in:International Journal of Systematic and Evolutionary Microbiology
Main Authors: On, Stephen L. W., Miller, William G., Biggs, Patrick J., Cornelius, Angela J., Vandamme, Peter
Format: Article in Journal/Newspaper
Language:English
Published: 2021
Subjects:
Biology and Life Sciences
General Medicine
Ecology
Evolution
Behavior and Systematics
Microbiology
Arcobacter
taxonomic revision
phylogenomic analyses
OGRI analyses
STOOL SAMPLES
CAMPYLOBACTER
PREVALENCE
SPP
HELICOBACTER
FOOD
IDENTIFICATION
DIAGNOSIS
PATHOGEN
BUTZLERI
Boundary Range
Antarc*
antarcticus
Online Access:https://biblio.ugent.be/publication/8736456
http://hdl.handle.net/1854/LU-8736456
https://doi.org/10.1099/ijsem.0.005133
https://biblio.ugent.be/publication/8736456/file/8736457
Description
Summary:This paper re-examines the taxonomic positions of recently described Poseidonibacter (P. parvum and P. antarcticus), Aliarco-bacter ('Al. vitoriensis'), Halarcobacter ('H. arenosus') and Arcobacter (A. caeni, A. lacus) species, and other species proposed to represent novel genera highly related to the genus Arcobacter. Phylogenomic and several overall genome relatedness indices (OGRIs) were applied to a total of 118 representative genomes for this purpose. Phylogenomic analyses demonstrated the Arcobacter Glade to be distinct from other Epsilonproteobacteria, clearly defined and containing closely related species. Aliarcobacter butzleri and Malaciobacter pacificus did not cluster with other members of these proposed genera, indicating incoherence of these genera. Every OGRI measure applied indicated a high level of relatedness among all Arcobacter Glade species, including the recently described taxa studied here, and substantially lower between type species representatives for other Epsilonproteobacteria. Where published guidelines were available, OGRI values for Arcobacter Glade species were either unsupportive of division into other genera or were at the lowest boundary range (for average amino acid identity). We propose that Aliarcobacter, Halarcobacter, Malaciobacter, Pseudarcobacter, Poseidonibacter and Arcobacter sensu stricto be considered members of a single genus. Arcobacter, and subsequently transfer P. parvum, P. antarcticus, 'Al. vitoriensis' and 'H. arenosus' to Arcobacter as Arcobacter parvum comb. nov., Arcobacter antarcticus comb. nov., Arcobacter vitoriensis comb. nov. and Arcobacter arenosus comb. nov.

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