Genetic population structure of the prosobranch snail Potamopyrgus antipodarum (Gray) in Denmark using PCR-RAPD fingerprints

R. Jacobsen, V. E. Forbes, O. Skovgaard

Research output: Contribution to journalArticle

29 Scopus citations

Abstract

Parthenogenetic species are often more widely distributed geographically than their sexual relatives. This success in colonizing can be explained either by dispersal of one or a few clones of wide physiological tolerance or by the distribution of many locally adapted clones. Here we test the hypothesis that successfully invading clones of Potamopyrgus antipodarum (Gray) are composed of a few broadly adapted genotypes by using polymerase chain reaction random amplified polymorphic DNA (PCR-RAPD) fingerprinting on six different populations of P. antipodarum from Denmark and three morphotypes of P. antipodarum from Britain. We detected two genotypes of P. antipodarum in six populations examined across Denmark using four decamer primers. The two genotypes were found to be morphologically and genetically indistinguishable from British P. antipodarum. In five of the six Danish populations only one genotype was found; at the remaining site, the two genotypes occurred sympatrically. The present study suggests that P. antipodarum successfully invaded Europe by the proliferation of very few clones.

Original languageEnglish (US)
Pages (from-to)1065-1070
Number of pages6
JournalProceedings of the Royal Society B: Biological Sciences
Volume263
Issue number1373
DOIs
StatePublished - Jan 1 1996

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