Abstract
Since the mid-1980s the zebra mussel, Dreissena polymorpha, Pallas 1771, has become the protagonist of a spectacular freshwater invasion in North America due to its large economic and biological impact. Several genetic studies on American populations have failed to detect any large-scale geographical patterns. In western Europe, where D. polymorpha has been a classical invader from the Pontocaspian since the early 19th century, the situation is strikingly different. Here, we show with genetic markers that two major western European invasion lineages with lowered genetic variability within and among populations can be discriminated. These two invasion lineages correspond with two separate navigable waterways to western Europe. We found a rapid and asymmetrical genetic interchange of the two invasion lines after the construction of the Main-Danube canal in 1992, which interconnected the two waterways across the main watershed.
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Selected References
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- Excoffier L., Smouse P. E., Quattro J. M. Analysis of molecular variance inferred from metric distances among DNA haplotypes: application to human mitochondrial DNA restriction data. Genetics. 1992 Jun;131(2):479–491. doi: 10.1093/genetics/131.2.479. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Fitch W. M., Margoliash E. Construction of phylogenetic trees. Science. 1967 Jan 20;155(3760):279–284. doi: 10.1126/science.155.3760.279. [DOI] [PubMed] [Google Scholar]
- Mooney H. A., Cleland E. E. The evolutionary impact of invasive species. Proc Natl Acad Sci U S A. 2001 May 8;98(10):5446–5451. doi: 10.1073/pnas.091093398. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Müller J., Wöll S., Fuchs U., Seitz A. Genetic interchange of Dreissena polymorpha populations across a canal. Heredity (Edinb) 2001 Jan;86(Pt 1):103–109. doi: 10.1046/j.1365-2540.2001.00816.x. [DOI] [PubMed] [Google Scholar]
- Reynolds J., Weir B. S., Cockerham C. C. Estimation of the coancestry coefficient: basis for a short-term genetic distance. Genetics. 1983 Nov;105(3):767–779. doi: 10.1093/genetics/105.3.767. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Stepien C. A., Hubers A. N., Skidmore J. L. Diagnostic genetic markers and evolutionary relationships among invasive dreissenoid and corbiculoid bivalves in North America: phylogenetic signal from mitochondrial 16S rDNA. Mol Phylogenet Evol. 1999 Oct;13(1):31–49. doi: 10.1006/mpev.1999.0666. [DOI] [PubMed] [Google Scholar]