Molecular identification of Taenia spp. in wolves (Canis lupus), brown bears (Ursus arctos) and cervids from North Europe and Alaska |
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| Authors: | Lavikainen Antti Laaksonen Sauli Beckmen Kimberlee Oksanen Antti Isomursu Marja Meri Seppo |
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| Institution: | aDepartment of Bacteriology and Immunology, and Infection Biology Program, Haartman Institute, P.O. Box 21, FI-00014 University of Helsinki, Finland;bFaculty of Veterinary Medicine, Agnes Sjöbergin katu 2, FI-00014 University of Helsinki, Finland;cAlaska Department of Fish & Game, Division of Wildlife Conservation, 1300 College Road, Fairbanks, AK 99701, United States;dProduction Animal and Wildlife Research Unit, Finnish Food Safety Authority Evira, Elektroniikkatie 3, 90590 Oulu, Finland;eHuslab, Helsinki University Central Hospital Laboratory, P.O. Box 400, 00290 HUS, Helsinki, Finland |
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| Abstract: | Taenia tapeworms of Finnish and Swedish wolves (Canis lupus) and Finnish brown bears (Ursus arctos), and muscle cysticerci of Svalbard reindeer (Rangifer tarandus platyrhynchus), Alaskan Grant's caribou (Rangifer tarandus granti) and Alaskan moose (Alces americanus) were identified on the basis of the nucleotide sequence of a 396 bp region of the mitochondrial cytochrome c oxidase subunit 1 gene. Two species were found from wolves: Taenia hydatigena and Taenia krabbei. The cysticerci of reindeer, caribou and one moose also represented T. krabbei. Most of the cysticercal specimens from Alaskan moose, however, belonged to an unknown T. krabbei-like species, which had been reported previously from Eurasian elks (Alces alces) from Finland. Strobilate stages from two bears belonged to this species as well. The present results suggest that this novel Taenia sp. has a Holarctic distribution and uses Alces spp. as intermediate and ursids as final hosts. |
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| Keywords: | Ursus arctos Alces Canis lupus Rangifer Taenia mtDNA |
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