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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.

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Abstract
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.
Keywords
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

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MLA
On, Stephen L. W., et al. “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.” INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, vol. 71, no. 11, 2021, doi:10.1099/ijsem.0.005133.
APA
On, S. L. W., Miller, W. G., Biggs, P. J., Cornelius, A. J., & Vandamme, P. (2021). 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. INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 71(11). https://doi.org/10.1099/ijsem.0.005133
Chicago author-date
On, Stephen L. W., William G. Miller, Patrick J. Biggs, Angela J. Cornelius, and Peter Vandamme. 2021. “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.” INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY 71 (11). https://doi.org/10.1099/ijsem.0.005133.
Chicago author-date (all authors)
On, Stephen L. W., William G. Miller, Patrick J. Biggs, Angela J. Cornelius, and Peter Vandamme. 2021. “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.” INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY 71 (11). doi:10.1099/ijsem.0.005133.
Vancouver
1.
On SLW, Miller WG, Biggs PJ, Cornelius AJ, Vandamme P. 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. INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY. 2021;71(11).
IEEE
[1]
S. L. W. On, W. G. Miller, P. J. Biggs, A. J. Cornelius, and P. Vandamme, “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.,” INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, vol. 71, no. 11, 2021.
@article{8736456,
  abstract     = {{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.}},
  articleno    = {{005133}},
  author       = {{On, Stephen L. W. and Miller, William G. and Biggs, Patrick J. and Cornelius, Angela J. and Vandamme, Peter}},
  issn         = {{1466-5026}},
  journal      = {{INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY}},
  keywords     = {{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}},
  language     = {{eng}},
  number       = {{11}},
  pages        = {{6}},
  title        = {{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.}},
  url          = {{http://doi.org/10.1099/ijsem.0.005133}},
  volume       = {{71}},
  year         = {{2021}},
}

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