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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
Näreaho, Anu
Olsson, Gert E.
Ribas Salvador, Alexis
Terefe, Yitagele
Nakao, Minoru
Keywords: Paràsits
Issue Date: 1-Jan-2016
Publisher: Elsevier
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.
Note: Versió postprint del document publicat a:
It is part of: International Journal of Parasitology, 2016, vol. 46, num. 5-6, p. 361-374
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ISSN: 0975-3702
Appears in Collections:Articles publicats en revistes (Biologia, Sanitat i Medi Ambient)

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