PercaFluV4, Main, Exploration, bibRecord, 000446

Differentiation of European freshwater bucephalids (Digenea: Bucephalidae) based on karyotypes and DNA sequences.

Identifieur interne : 000446 ( Main/Exploration ); précédent : 000445; suivant : 000447

Differentiation of European freshwater bucephalids (Digenea: Bucephalidae) based on karyotypes and DNA sequences.

Auteurs : Romualda Petkevi I T [Lituanie] ; Virmantas Stun Nas ; Gra Ina Stanevi I T

Source :

Systematic parasitology ; 2014.

RBID : pubmed:24474041

Descripteurs français

Wicri :
- geographic : Finlande.

English descriptors

KwdEn :
- Animals, Bivalvia (parasitology), DNA, Ribosomal Spacer (genetics), Finland, Fresh Water, Karyotype, Molecular Sequence Data, Perches (parasitology), Phylogeny, RNA, Ribosomal, 28S (genetics), Trematoda (classification), Trematoda (genetics).
MESH :
- chemical , genetics : DNA, Ribosomal Spacer, RNA, Ribosomal, 28S.
- geographic : Finland.
- classification : Trematoda.
- genetics : Trematoda.
- parasitology : Bivalvia, Perches.
- Animals, Fresh Water, Karyotype, Molecular Sequence Data, Phylogeny.

Abstract

Three species of bucephalid digeneans are known in European freshwater habitats. In this study parthenitae of Rhipidocotyle campanula (Dujardin, 1845) and R. fennica Gibson, Taskinen & Valtonen, 1992, infecting unionid bivalves, and adult Bucephalus polymorphus von Baer, 1827 from perch (Perca fluviatilis L.) were investigated using karyological analysis and DNA sequencing. Our previously published data on genetic characteristics of parthenitae of B. polymorphus from Dreissena polymorpha Pallas were used for comparative analysis. Ribosomal DNA sequences (ITS2 and 28S rDNA) were used to estimate the phylogenetic relationships of the three bucephalid species. Very close phylogenetic affinity between investigated species was revealed; the sequence difference between the two species of Rhipidocotyle Diesing, 1858 (3.78% based on 28S) was comparable with intergeneric differences observed in comparisons of B. polymorphus with R. campanula and R. fennica (3.43% and 4.49% based on 28S, respectively). A high degree of similarity was noted in karyotype structure of the two species of Rhipidocotyle. The diploid chromosome sets consist of 14 bi-armed chromosomes with the first pair of metacentric elements markedly larger than the remaining chromosomes. This chromosome set structure is also specific to B. polymorphus. One specimen of Anodonta anatina L. was infected with tetraploid R. fennica (4n = 28). On the basis of karyotype characters and molecular data, species of the genus Rhipidocotyle cannot be recognised as more closely related to each other than to B. polymorphus. Our findings of Lithuanian and Ukrainian populations of unionid mussels infected with R. fennica provide evidence that this species occurs not only in Finland but also in Central and Eastern Europe. Previous reports of B. polymorphus in unionids in these regions are equivocal because of possible confusion with R. fennica.

DOI: 10.1007/s11230-013-9465-0
PubMed: 24474041

Affiliations:

Lituanie

Le document en format XML

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<front><div type="abstract" xml:lang="en">Three species of bucephalid digeneans are known in European freshwater habitats. In this study parthenitae of Rhipidocotyle campanula (Dujardin, 1845) and R. fennica Gibson, Taskinen & Valtonen, 1992, infecting unionid bivalves, and adult Bucephalus polymorphus von Baer, 1827 from perch (Perca fluviatilis L.) were investigated using karyological analysis and DNA sequencing. Our previously published data on genetic characteristics of parthenitae of B. polymorphus from Dreissena polymorpha Pallas were used for comparative analysis. Ribosomal DNA sequences (ITS2 and 28S rDNA) were used to estimate the phylogenetic relationships of the three bucephalid species. Very close phylogenetic affinity between investigated species was revealed; the sequence difference between the two species of Rhipidocotyle Diesing, 1858 (3.78% based on 28S) was comparable with intergeneric differences observed in comparisons of B. polymorphus with R. campanula and R. fennica (3.43% and 4.49% based on 28S, respectively). A high degree of similarity was noted in karyotype structure of the two species of Rhipidocotyle. The diploid chromosome sets consist of 14 bi-armed chromosomes with the first pair of metacentric elements markedly larger than the remaining chromosomes. This chromosome set structure is also specific to B. polymorphus. One specimen of Anodonta anatina L. was infected with tetraploid R. fennica (4n = 28). On the basis of karyotype characters and molecular data, species of the genus Rhipidocotyle cannot be recognised as more closely related to each other than to B. polymorphus. Our findings of Lithuanian and Ukrainian populations of unionid mussels infected with R. fennica provide evidence that this species occurs not only in Finland but also in Central and Eastern Europe. Previous reports of B. polymorphus in unionids in these regions are equivocal because of possible confusion with R. fennica.</div>
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Differentiation of European freshwater bucephalids (Digenea: Bucephalidae) based on karyotypes and DNA sequences.

Differentiation of European freshwater bucephalids (Digenea: Bucephalidae) based on karyotypes and DNA sequences.

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki

	Serveur d'exploration Perca fluviatilis
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