2016
DOI: 10.7717/peerj.1659
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Unequal contribution of native South African phylogeographic lineages to the invasion of the African clawed frog,Xenopus laevis, in Europe

Abstract: Due to both deliberate and accidental introductions, invasive African Clawed Frog (Xenopus laevis) populations have become established worldwide. In this study, we investigate the geographic origins of invasive X. laevis populations in France and Portugal using the phylogeographic structure of X. laevis in its native South African range. In total, 80 individuals from the whole area known to be invaded in France and Portugal were analysed for two mitochondrial and three nuclear genes, allowing a comparison with… Show more

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Cited by 28 publications
(70 citation statements)
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“…As most specimens were exported by a single organization which collected animals within 150 km of Jonkershoek (van Sittert & Measey, ), invasive populations were assumed to represent a clade that is distributed between Vredendal in the north to Knysna in the east (Figure , Furman et al., ). While this clade was already identified in Chile, France, Italy, and Portugal (De Busschere et al., ; Lillo et al., ; Lobos et al., ), the invasive populations in France were recently found to contain another clade from the northern regions of South Africa (De Busschere et al., ).…”
Section: Discussionmentioning
confidence: 90%
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“…As most specimens were exported by a single organization which collected animals within 150 km of Jonkershoek (van Sittert & Measey, ), invasive populations were assumed to represent a clade that is distributed between Vredendal in the north to Knysna in the east (Figure , Furman et al., ). While this clade was already identified in Chile, France, Italy, and Portugal (De Busschere et al., ; Lillo et al., ; Lobos et al., ), the invasive populations in France were recently found to contain another clade from the northern regions of South Africa (De Busschere et al., ).…”
Section: Discussionmentioning
confidence: 90%
“…This niche shift has facilitated a rapid northward range expansion. A similar phenomenon could explain the invasion success of X. laevis in France, where phylogenetic signatures of two different clades were detected (De Busschere et al, 2016). However, experimental data and further genomic analyses are needed to test the hypothesis of rapid adaptation initiated by genomic admixture between long-time isolated clades.…”
mentioning
confidence: 85%
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“…Invasive populations of X. laevis have since become established globally as a result of accidental as well as voluntary releases from research facilities and through the release of animals from the pet trade (Measey et al, 2012). Despite a growing body of literature on the invasion range and the impacts of this species on autochthonous ecosystems (Lafferty and Page, 1997;Lillo et al, 2005Lillo et al, , 2011Lobos and Jaksic, 2005;Eggert and Fouquet, 2006;Fouquet and Measey, 2006;Robert et al, 2007;Faraone et al, 2008;Rebelo et al, 2010;Measey et al, 2012;De Busschere et al, 2016), this species has never been used to test the predictions of dispersal models. Our study focuses on an invasive population of X. laevis in the west of France.…”
Section: Introductionmentioning
confidence: 99%