Research Output

Genetic variability in Hysterothylacium aduncum, a raphidascarid nematode isolated from sprat (Sprattus sprattus) of different geographical areas of the northeastern Atlantic

  Species of the genus Hysterothylacium are among the most common marine nematode fish parasites in the northern Atlantic. Due to recent findings of cryptic speciation in other parasitic ascaridoid nematodes, a similar pattern of sibling species was hypothesized also for Hysterothylacium aduncum. By investigating a 886- to 890-bp-long genomic DNA fragment including ITS-1, 5.8S rDNA and ITS-2 of 40 specimens of H. aduncum of sprat (Sprattus sprattus) of four different biogeographical regions (North Sea, English Channel, Bay of Biscay, Adriatic Sea), we could not detect significant genetic variability and therefore cryptic speciation. Nevertheless, while ITS-1 and 5.8S rDNA sequences were identical for all analysed specimens, ITS-2 sequences showed a population-specific pattern with the differentiation of an English Channel/Bay of Biscay group from a North Sea/Mediterranean Sea group.

  • Type:

    Article

  • Date:

    03 August 2007

  • Publication Status:

    Published

  • Publisher

    Springer

  • DOI:

    10.1007/s00436-007-0662-0

  • Cross Ref:

    662

  • ISSN:

    0932-0113

  • Library of Congress:

    QR Microbiology

  • Dewey Decimal Classification:

    597 Cold-blooded vertebrates; fishes

Citation

Klimpel, S., Kleinertz, S., Hanel, R., & Rueckert, S. (2007). Genetic variability in Hysterothylacium aduncum, a raphidascarid nematode isolated from sprat (Sprattus sprattus) of different geographical areas of the northeastern Atlantic. Parasitology Research, 101(5), (1425-1430). doi:10.1007/s00436-007-0662-0. ISSN 0932-0113

Authors

Keywords

Insect Science; General Veterinary; Parasitology; Infectious Diseases; General Medicine

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