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Host specificity of Trypanosoma (Herpetosoma) species: evidence that bank voles (Clethrionomys glareolus) carry only one T. (H.) evotomys 18S rRNA genotype but wood mice (Apodemus sylvaticus) carry at least two polyphyletic parasites

Noyes, H.A.; Ambrose, P.; Barker, F.; Begon, M.; Bennet, M.; Bown, K.J. and Kemp, S.J. (2002) Host specificity of Trypanosoma (Herpetosoma) species: evidence that bank voles (Clethrionomys glareolus) carry only one T. (H.) evotomys 18S rRNA genotype but wood mice (Apodemus sylvaticus) carry at least two polyphyletic parasites. Parasitology, 124 (2). pp. 185-190. ISSN 0031-1820

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Abstract

The strongest evidence for host specificity of mammalian trypanosomes comes from parasites of the subgenus Trypanosoma (Herpetosoma). Laboratory studies have shown that T. (Herpetosoma) species will not infect an alternative host. However, this has not been demonstrated in wild populations. We screened 560 bank voles (Clethrionomys glareolus) and 148 wood mice (Apodemus sylvaticus) for trypanosomes by PCR amplification of the 18S rRNA gene. In total, 109 (19%) bank voles and 12 (8%) wood mice were infected. A HaeIII restriction site was discovered that could be used to discriminate between T. (H.) evotomys of the bank vole and T. (H.) grosi of the wood mouse. All the parasites in the bank voles were identified as T. (Herpetosoma) evotomys by RFLP-PCR. Out of the 12 wood mouse infections 10 were due to T. grosi. Two of the wood mice were infected with parasites with a novel genotype that was most similar to those of T. evotomys and T. microti of voles. Fifty-six fleas collected from the rodents were also screened for trypanosomes; 9 were infected with T. evotomys and 1 with T. grosi. One of the fleas infected with T. evotomys was collected from a wood mouse.

Item Type:Article
Additional Information:Published online by Cambridge University Press 30 Jul 2002. Issue 02 - Feb 2002. Citation: H. A. NOYES, P. AMBROSE, F. BARKER, M. BEGON, M. BENNET, K. J. BOWN and S. J. KEMP (2002). Host specificity of Trypanosoma (Herpetosoma) species: evidence that bank voles (Clethrionomys glareolus) carry only one T. (H.) evotomys 18S rRNA genotype but wood mice (Apodemus sylvaticus) carry at least two polyphyletic parasites. Parasitology, 124, pp 185-190 doi:10.1017/S0031182001001019
Uncontrolled Keywords:host specificity; host restriction; Trypanosoma microti; Microtus agrestis; Siphonaptera; DISEASE
Subjects:Q Science > QH Natural history > QH301 Biology
Q Science > QH Natural history > QH426 Genetics
Departments, Research Centres and Related Units:Academic Faculties, Institutes and Research Centres > Faculty of Science > Department of Biological Sciences
Academic Faculties, Institutes and Research Centres > Faculty of Veterinary Science > Department of Veterinary Pathology
DOI:10.1017/S0031182001001019
Publisher's Statement:H. A. NOYES, P. AMBROSE, F. BARKER, M. BEGON, M. BENNET, K. J. BOWN and S. J. KEMP (2002). Host specificity of Trypanosoma (Herpetosoma) species: evidence that bank voles (Clethrionomys glareolus) carry only one T. (H.) evotomys 18S rRNA genotype but wood mice (Apodemus sylvaticus) carry at least two polyphyletic parasites. Parasitology, 124, pp 185-190 doi:10.1017/S0031182001001019 © Cambridge University Press 2007. http://journals.cambridge.org/action/displayIssue?jid=PAR&volumeId=124&issueId=02
Refereed:Yes
Status:Published
ID Code:231
Deposited On:11 Aug 2008 15:39
Last Modified:20 May 2011 18:40

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