Reappraisal of Hydatigera taeniaeformis (Batsch, 1786) (Cestoda : Taeniidae) sensu lato with description of Hydatigera kamiyai n. sp.

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Lavikainen , A , Iwaki , T , Haukisalmi , V , Konyaev , S V , Casiraghi , M , Dokuchaev , N E , Galimberti , A , Halajian , A , Henttonen , H , Ichikawa-Seki , M , Itagaki , T , Krivopalov , A V , Meri , S , Morand , S , Nareaho , A , Olsson , G E , Ribas , A , Terefe , Y & Nakao , M 2016 , ' Reappraisal of Hydatigera taeniaeformis (Batsch, 1786) (Cestoda : Taeniidae) sensu lato with description of Hydatigera kamiyai n. sp. ' , International Journal for Parasitology , vol. 46 , no. 5-6 , pp. 361-374 . https://doi.org/10.1016/j.ijpara.2016.01.009

Title: Reappraisal of Hydatigera taeniaeformis (Batsch, 1786) (Cestoda : Taeniidae) sensu lato with description of Hydatigera kamiyai n. sp.
Author: Lavikainen, Antti; Iwaki, Takashi; Haukisalmi, Voitto; Konyaev, Sergey V.; Casiraghi, Maurizio; Dokuchaev, Nikolai E.; Galimberti, Andrea; Halajian, Ali; Henttonen, Heikki; Ichikawa-Seki, Madoka; Itagaki, Tadashi; Krivopalov, Anton V.; Meri, Seppo; Morand, Serge; Nareaho, Anu; Olsson, Gert E.; Ribas, Alexis; Terefe, Yitagele; Nakao, Minoru
Contributor: University of Helsinki, Medicum
University of Helsinki, Finnish Museum of Natural History
University of Helsinki, Medicum
University of Helsinki, Departments of Faculty of Veterinary Medicine
Date: 2016-05
Language: eng
Number of pages: 14
Belongs to series: International Journal for Parasitology
ISSN: 0020-7519
URI: http://hdl.handle.net/10138/223975
Abstract: The common cat tapeworm Hydatigera taeniaeformis is a complex of three morphologically cryptic entities, which can be differentiated genetically. To clarify the biogeography and the host spectrum of the cryptic lineages, 150 specimens of H. taeniaeformis in various definitive and intermediate hosts from Eurasia, Africa and Australia were identified with DNA barcoding using partial mitochondrial cytochrome c oxidase subunit 1 gene sequences and compared with previously published data. Additional phylogenetic analyses of selected isolates were performed using nuclear DNA and mitochondrial genome sequences. Based on molecular data and morphological analysis, Hydatigera kamiyai n. sp. Iwaki is proposed for a cryptic lineage, which is predominantly northern Eurasian and uses mainly arvicoline rodents (voles) and mice of the genus Apodemus as intermediate hosts. Hydatigera taeniaeformis sensu stricto (s.s.) is restricted to murine rodents (rats and mice) as intermediate hosts. It probably originates from Asia but has spread worldwide. Despite remarkable genetic divergence between H. taeniaeformis s.s. and H. kamiyai, interspecific morphological differences are evident only in dimensions of rostellar hooks. The third cryptic lineage is closely related to H. kamiyai, but its taxonomic status remains unresolved due to limited morphological, molecular, biogeographical and ecological data. This Hydatigera sp. is confined to the Mediterranean and its intermediate hosts are unknown. Further studies are needed to classify Hydatigera sp. either as a distinct species or a variant of H. kamiyai. According to previously published limited data, all three entities occur in the Americas, probably due to human-mediated introductions. (C) 2016 Australian Society for Parasitology Inc. Published by Elsevier Ltd. All rights reserved.
Subject: Hydatigera kamiyai n. sp.
Hydatigera taeniaeformis
Cryptic species
Phylogeny
Taeniidae
MULTIPLE SEQUENCE ALIGNMENT
RATTUS-NORVEGICUS
MOLECULAR-IDENTIFICATION
INTRASPECIFIC VARIATION
GENUS ECHINOCOCCUS
TAXONOMIC REVISION
MITOCHONDRIAL-DNA
FAMILY TAENIIDAE
HYPOTHESIS
DIVERSITY
3111 Biomedicine
413 Veterinary science
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