European Invasion of North American Pinus strobus at Large and Fine Scales: High Genetic Diversity and Fine-Scale Genetic Clustering over Time in the Adventive Range

Mandák, Bohumil; Hadincová, Věra; Mahelka, Václav; Wildová, Radka

doi:10.1371/journal.pone.0068514

Cited by 22 publications

(19 citation statements)

References 111 publications

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“…Most North America samples were strongly assigned to one cluster, but still some individuals belong to the other cluster or the mixed. The lack of structure in the native range was also found in North American Pinus strobus L., which was ascribed to high pollen‐mediated gene flow and a history of industrial transportation (Mandák et al ., ). North American populations were also possibly similar due to pollen‐mediated gene flow and/or human transport of propagules in our study.…”

Section: Discussionmentioning

confidence: 97%

Genetic variation and structure in native and invasive Solidago canadensis populations

et al. 2014

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Solidago canadensis is native to North America, but has become a noxious invasive plant in China. We know only a little about its invasion history and the effects of introductions on its genetic composition. Here, we investigated genetic variation and structure between 15 North American and 13 Chinese populations of S. canadensis using AFLP makers. Four AFLP loci suggested relatively high genetic diversity of this weed and similar genetic variation between the invasive range and the native range. Most genetic variation was within populations across two ranges, but the Chinese range had a higher degree of among-population variation than the North American range. Multiple tests, including Bayesian assignment, UPGMA analysis, PCoA and analysis of 'isolation by distance', showed that the Chinese populations originated from at least two distinct native sources and that secondary introduction or dispersal should be common in China. Also, North American populations were possibly a single genetic group. Overall, S. canadensis in China was probably founded from multiple introductions and then spread through long-distance dispersal associated with human activities. Genetic variability in the species in the invaded range appears to have favoured establishment and spread and may well provide a challenge to successful control.

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Section: Discussionmentioning

confidence: 97%

Genetic variation and structure in native and invasive Solidago canadensis populations

et al. 2014

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“…Genetic admixture, that is the mixture of previously long-isolated lineages after they come into secondary contact, creating novel genetic variation, is supposed to be an important trigger of species invasions (e.g. Durka et al 2005;Genton et al 2005;Marrs et al 2008;Chun et al 2009;Mand ak et al 2013;Keller et al 2014) as well as natural range expansions (Colosimo et al 2005;Mullen & Hoekstra 2008;De Carvalho et al 2010;Rius & Darling 2014). Refugia that existed during the Late Pleniglacial (LPG), an interval of the most extreme glacial conditions which lasted from 15 000 to 24 000 ka BP (Tzedakis et al 2013), provided suitable conditions for the survival of many species.…”

Section: Introductionmentioning

confidence: 99%

Higher genetic diversity in recolonized areas than in refugia of Alnus glutinosa triggered by continent‐wide lineage admixture

et al. 2015

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Genetic admixture is supposed to be an important trigger of species expansions because it can create the potential for selection of genotypes suitable for new climatic conditions. Up until now, however, no continent-wide population genetic study has performed a detailed reconstruction of admixture events during natural species expansions. To fill this gap, we analysed the postglacial history of Alnus glutinosa, a keystone species of European swamp habitats, across its entire distribution range using two molecular markers, cpDNA and nuclear microsatellites. CpDNA revealed multiple southern refugia located in the Iberian, Apennine, Balkan and Anatolian Peninsulas, Corsica and North Africa. Analysis of microsatellites variation revealed three main directions of postglacial expansion: (i) from the northern part of the Iberian Peninsula to Western and Central Europe and subsequently to the British Isles, (ii) from the Apennine Peninsula to the Alps and (iii) from the eastern part of the Balkan Peninsula to the Carpathians followed by expansion towards the Northern European plains. This challenges the classical paradigm that most European populations originated from refugial areas in the Carpathians. It has been shown that colonizing lineages have met several times and formed secondary contact zones with unexpectedly high population genetic diversity in Central Europe and Scandinavia. On the contrary, limited genetic admixture in southern refugial areas of A. glutinosa renders rear-edge populations in the Mediterranean region more vulnerable to extinction due to climate change.

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“…Results of genetic investigations conducted in the population of P. alba showed over-domination of clonal reproduction, which resulted in very low clonal diversity (R = 0.12). Significant SGS was found at density, disturbances or behavior of the seed dispersers are important for SGS as well because each of these factors may affect directions and rates of population processes responsible for SGS (Vekemans and Hardy 2004;Hardy et al 2006;Jones et al 2006;Kettle et al 2011;Scofield et al 2010;Mandák et al 2013;Meeus et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Clonality as a driver of spatial genetic structure in populations of clonal tree species

Dering

Chybicki

Rączka³

2015

J Plant Res

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Random genetic drift, natural selection and restricted gene dispersal are basic factors of the spatial genetic structure (SGS) in plant populations. Clonal reproduction has a profound effect on population dynamics and genetic structure and thus emerges as a potential factor in contributing to and modelling SGS. In order to assess the impact of clonality on SGS we studied clonal structure and SGS in the population of Populus alba. Six hundred and seventy-two individuals were mapped and genotyped with 16 nuclear microsatellite markers. To answer the more general question regarding the relationship between SGS and clonality we used Sp statistics, which allows for comparisons of the extent of SGS among different studies, and the comparison of published data on SGS in clonal and non-clonal tree species. Sp statistic was extracted for 14 clonal and 27 non-clonal species belonging to 7 and 18 botanical families, respectively. Results of genetic investigations conducted in the population of P. alba showed over-domination of clonal reproduction, which resulted in very low clonal diversity (R = 0.12). Significant SGS was found at both ramet (Sp = 0.095) and genet level (Sp = 0.05) and clonal reproduction was indicated as an important but not sole driving factor of SGS. Within-population structure, probably due to family structure also contributed to high SGS. High mean dominance index (D = 0.82) indicated low intermingling among genets. Literature survey revealed that clonal tree species significantly differ from non-clonal species with respect to SGS, having 2.8-fold higher SGS. This led us to conclude that clonality is a life-history trait that can have deep impact on processes acting in populations of clonal tree species leading to significant SGS.

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European Invasion of North American Pinus strobus at Large and Fine Scales: High Genetic Diversity and Fine-Scale Genetic Clustering over Time in the Adventive Range

Cited by 22 publications

References 111 publications

Genetic variation and structure in native and invasive Solidago canadensis populations

Genetic variation and structure in native and invasive Solidago canadensis populations

Higher genetic diversity in recolonized areas than in refugia of Alnus glutinosa triggered by continent‐wide lineage admixture

Clonality as a driver of spatial genetic structure in populations of clonal tree species

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