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- Title
Detection of a new Arsenophonus-type bacterium in Canadian populations of the Rocky Mountain wood tick, Dermacentor andersoni.
- Authors
Dergousoff, Shaun J.; Chilton, Neil B.
- Abstract
Ticks of the genus Dermacentor are important vectors of human and animal pathogens in North America. They also carry a variety of endosymbiotic (i.e. non-pathogenic) bacteria. The American dog tick, D. variabilis, is known to be infected with gammaproteobacteria of the genus Arsenophonus. However, there have been no previous reports of Arsenophonus-type bacteria in the Rocky Mountain wood tick, D. andersoni, a species that is sympatric with D. variabilis in the western parts of its distributional range . In this study, the presence of Arsenophonus-type bacteria was determined by PCR and DNA sequencing for 338 D. andersoni and 448 D. variabilis adults from western Canada. Fifty-one (15%) of the D. andersoni were found to be infected with Arsenophonus, whereas only a single D. variabilis was infected. The prevalence of Arsenophonus in D. andersoni varied among localities (0–27%). The 16S rDNA sequences of Arsenophonus in Canadian D. andersoni and D. variabilis were identical to one another, but the results of a phylogenetic analysis showed that they were genetically distinct from, and may represent a different species to, the Arsenophonus in D. variabilis and Amblyomma americanum in eastern USA.
- Subjects
NORTH America; DERMACENTOR; PATHOGENIC microorganisms; ENDOSYMBIOSIS; BACTERIA; AMERICAN dog tick
- Publication
Experimental & Applied Acarology, 2010, Vol 52, Issue 1, p85
- ISSN
0168-8162
- Publication type
Article
- DOI
10.1007/s10493-010-9340-5