A global invader at home: population structure of the green crab, Carcinus maenas, in Europe

Molecular Ecology
Joe Roman, Stephen R Palumbi

Abstract

The European green crab, Carcinus maenas, has a native distribution that extends from Norway to Mauritania. It has attracted attention because of its recent invasions of Australia, Tasmania, South Africa, Japan and both coasts of North America. To examine the population structure of this global invader in its native range, we analysed a 502-base-pair fragment of the mitochondrial cytochrome c oxidase I (COI) gene from 217 crabs collected in the North Atlantic and 13 specimens from the Mediterranean. A clear genetic break (11% sequence divergence) occurs between the Mediterranean and Atlantic, supporting the species-level status of these two forms. Populations in the Faeroe Islands and Iceland were genetically distinct from continental populations (F(ST) = 0.264-0.678), with Iceland represented by a single lineage also found in the Faeroes. This break is consistent with a deep-water barrier to dispersal in green crabs. Although there are relatively high levels of gene flow along the Atlantic coast of Europe, slight population structure was found between the central North Sea and populations to the south. Analysis of variance, multidimensional scaling, and the distribution of private haplotypes support this break, located between...Continue Reading

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Citations

Sep 9, 2006·Proceedings. Biological Sciences·Joe Roman
Mar 25, 2011·Proceedings. Biological Sciences·Meredith M DoellmanSteve V Vollmer
Apr 19, 2013·Proceedings. Biological Sciences·Michelle R GaitherRobert J Toonen
Feb 20, 2015·Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis·Haolang ZhouYingze Xiong
May 7, 2011·Marine Environmental Research·Valerio MatozzoMaria Gabriella Marin
Apr 22, 2009·Behavioural Processes·Patricia Ann RameyFuat Balci
Jan 6, 2009·Molecular Ecology·John A DarlingJonathan B Geller
Mar 19, 2016·Molecular Phylogenetics and Evolution·Hsiu-Chin LinBenny K K Chan
Oct 3, 2007·Molecular Ecology·Tomaso PatarnelloRita Castilho
Jan 25, 2013·Evolutionary Applications·William Stewart Grant, Wei Cheng
Dec 6, 2011·Molecular Phylogenetics and Evolution·Víctor Hugo García-MerchánMarta Pascual
Aug 24, 2016·Molecular Ecology·Mark F RichardsonAlastair J Hirst
Jul 13, 2018·Genome Génome / Conseil National De Recherches Canada·Linda A Lait, Steven M Carr
Jun 18, 2020·Proceedings. Biological Sciences·Gabriela TorresLuis Giménez

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