Publication: Molecular evidence of cryptic diversity in Paracaryophyllaeus (Cestoda: Caryophyllidea), parasites of loaches (Cobitidae) in Eurasia, including description of P-vladkae n. sp.
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Date
2014-12-01
Authors
Aydogdu, Ali
Authors
Scholz, Tomas
Oros, Mikulas
Bazsalovicsova, Eva
Brabec, Jan
Waeschenbach, Andrea
Xi, Bing-Wen
Besprozvannykh, Vladimir
Shimazu, Takeshi
Kralova-Hromadova, Ivica
Littlewood, D. Timothy J.
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Volume Title
Publisher
Elsevier Ireland Ltd
Abstract
Molecular phylogenetic analysis of an extensive collection of monozoic tapeworms of the genus Paracaryophyllaeus Kulakovskaya, 1961 (Cestoda: Caryophyllidea), parasites of loaches (Cypriniformes: Cobitidae) in Eurasia, has revealed cryptic species diversity within this long-time monotypic genus, especially in the Paracaryophyllaeus gotoi (Motomura, 1927) species complex [syn. Paracaryophyllaeus dubininorum (Kulakovskaya, 1961); type species]. Three independent, well-supported clades were discovered on the basis of molecular data: (i) specimens from Misgurnus anguillicaudatus and Cobitis lutheri from China, Russian Far East and Japan called herein P. cf. gotoi 1, which may be conspecific with P. gotoi (Motomura, 1927), although in the absence of sequence data for P. gotoi from its type locality (basin of the River Kumkan in Korea), no certain inferences about their identity can currently be made; (ii) specimens from M. anguillicaudatus from China and Japan - P. cf. gotoi 2, which are morphologically indistinguishable from those of P. cf. gotoi 1; and (iii) morphologically distinct tapeworms from the endemic loach Cobitis bilseli from southwestern Turkey (Beysehir Lake), which are described herein as a new species. Paracaryophyllaeus vladkae Scholz, Oros and Aydogdu n. sp. differs from the remaining species of the genus in the following characteristics: the testes begin anterior to the first vitelline follicles (versus posterior), the body is short and robust (versus more elongate and slender), and the scolex is wide, rounded or apically tapered (versus claviform to truncate). Species composition of the genus, host specificity of species and geographical distribution are briefly discussed. (C) 2014 Elsevier Ireland Ltd. All rights reserved.
Description
Keywords
Tapeworms platyhelminthes, Monozoic tapeworms, Cyprinid fish, Siluriformes, Identification, Substitution, Phylogeny, Eucestoda, Revision, Nuclear, Taxonomy, Molecular phylogeny, Caryophyllidea, Species complex, Freshwater fishes, Eurasia, Science & technology, Life sciences & biomedicine, Parasitology