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A DNA probe for the detection of Dicrocoelium dendriticum in ants of Formica spp. and Lasius spp.

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Abstract

Repetitive DNA sequences present in the genome of Dicrocoelium dendriticum were identified by hybridization of genomic DNA that had been digested with different restriction enzymes with 32P-labeled genomic D. dendriticum DNA. DNA fragments containing repetitive sequences were isolated from PstI-digested D.␣dendriticum DNA and were subcloned into a plasmid vector. Plasmids containing repetitive sequences were identified by colony hybridization. One of these plasmids, designated Ddr-IV, was isolated and used as a probe in further studies. Ddr-IV is specific for D. dendriticum since it does not hybridize to DNA isolated from other trematodes. In addition, Ddr-IV was capable of detecting D. dendriticum metacercariae in ants (Formica cunicularia, F. rufibarbis, and Lasius sp.), which act as second intermediate hosts in the parasite's life cycle. Since metacercariae constitute the infectious stage of the parasite for grazing animals, Ddr-IV will provide a useful tool for epidemiology studies of dicrocoeliosis.

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Received: 30 August 1997  / Accepted: 12 November 1997

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Heussler, V., Kaufmann, H., Glaser, I. et al. A DNA probe for the detection of Dicrocoelium dendriticum in ants of Formica spp. and Lasius spp.. Parasitol Res 84, 505–508 (1998). https://doi.org/10.1007/s004360050437

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Keywords

  • Intermediate Host
  • Nick Translation
  • Infected Snail
  • Fascioliasis
  • Distinct Banding Pattern