Projecto-Garcia, Joana and Cabral, Henrique and Schubart, Christoph D. (2010) High regional differentiation in a North American crab species throughout its native range and invaded European waters: a phylogeographic analysis. BIOLOGICAL INVASIONS, 12 (1). pp. 253-263. ISSN 1387-3547, 1573-1464
Full text not available from this repository. (Request a copy)Abstract
Rhithropanopeus harrisii (Gould 1841) has a native distribution from New Brunswick (Canada) to Veracruz (Mexico) and is considered an invasive species in northwestern North American (Oregon and California), South American (Brazil) and European estuaries and rivers. In Europe, it was observed for the first time in 1874, in The Netherlands. We sequenced and analyzed part of the cytochrome oxidase subunit I gene (mitochondrial DNA) of eight populations, three from the east coast of the United States of America (USA) and five from Europe, in order to assess their genetic diversity and to determine a potential founder population. European populations are characterized by a lower number of haplotypes than the whole native region of the eastern USA, suggesting that genetic bottlenecks occurred during the European colonisation. Along the North American East Coast, there is evidence of clearcut genetic heterogeneity, New Jersey being the most similar population in its genetic structure to the postulated Europe-founding population. Also the different European populations are heterogeneous and there is a tendency of higher genetic diversity in the populations founded earlier. R. harrisii is still in the process of expansion in Europe and may have been introduced once or repeatedly by different invasion mechanisms. The pronounced lack of gene flow among populations is of great ecological significance, since it may facilitate rapid adaptation and specialization to local conditions within single estuarine systems.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | RHITHROPANOPEUS-HARRISII GOULD; CHINESE MITTEN CRAB; MITOCHONDRIAL-DNA; POPULATION-GROWTH; CARCINUS-MAENAS; XANTHID CRAB; DIVERGENCE; DISPERSAL; CRUSTACEA; BRACHYURA; Rhithropanopeus harrisii; Invasive species; mtDNA diversity; Genetic bottleneck; Population isolation; Larval retention |
| Subjects: | 500 Science > 590 Zoological sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Zoologie > Zoologie/Evolutionsbiologie (Prof. Dr. Jürgen Heinze) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 12 Aug 2020 08:35 |
| Last Modified: | 12 Aug 2020 08:35 |
| URI: | https://pred.uni-regensburg.de/id/eprint/25372 |
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