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Campylobacter jejuni sequence types show remarkable spatial and temporal stability in Blackbirds
Linnaeus University, Faculty of Health and Life Sciences, Department of Biology and Environmental Science.
University of Newcastle, Australia.
Linnaeus University, Faculty of Health and Life Sciences, Department of Biology and Environmental Science. Uppsala University.ORCID iD: 0000-0002-1152-4235
Uppsala University.
2015 (English)In: Infection Ecology & Epidemiology, ISSN 2000-8686, E-ISSN 2000-8686, Vol. 5, 28383Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: The zoonotic bacterium Campylobacter jejuni has a broad host range but is especially associated with birds, both domestic and wild. Earlier studies have indicated thrushes of the genus Turdus in Europe to be frequently colonized with C. jejuni, and predominately with host-associated specific genotypes. The European Blackbird Turdus merula has a large distribution in Europe, including some oceanic islands, and was also introduced to Australia by European immigrants in the 1850s.

METHODS: The host specificity and temporal stability of European Blackbird C. jejuni was investigated with multilocus sequence typing in a set of isolates collected from Sweden, Australia, and The Azores.

RESULTS: Remarkably, we found that the Swedish, Australian, and Azorean isolates were genetically highly similar, despite extensive spatial and temporal isolation. This indicates adaptation, exquisite specificity, and stability in time for European Blackbirds, which is in sharp contrast with the high levels of recombination and mutation found in poultry-related C. jejuni genotypes.

CONCLUSION: The maintenance of host-specific signals in spatially and temporally separated C. jejuni populations suggests the existence of strong purifying selection for this bacterium in European Blackbirds.

Place, publisher, year, edition, pages
2015. Vol. 5, 28383
Keyword [en]
Blackbird, Campylobacter jejuni, MLST, Gastrointestinal pathogen, Population structure
National Category
Microbiology
Research subject
Ecology, Zoonotic Ecology
Identifiers
URN: urn:nbn:se:lnu:diva-57893DOI: 10.3402/iee.v5.28383PubMedID: 26634844OAI: oai:DiVA.org:lnu-57893DiVA: diva2:1045460
Available from: 2016-11-09 Created: 2016-11-09 Last updated: 2016-11-09Bibliographically approved

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Griekspoor, PetraWaldenström, Jonas
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CiteExportLink to record
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Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
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  • en-US
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  • Other locale
More languages
Output format
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