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Global gene flow releases invasive plants from environmental constraints on genetic diversity.

  • Smith AL Zoology, School of Natural Sciences, Trinity College Dublin, Dublin 2, Ireland; annabel.smith@uq.edu.au.
  • Hodkinson TR Botany, School of Natural Sciences, Trinity College Dublin, Dublin 2, Ireland.
  • Villellas J Departamento Biogeografía y Cambio Global, Museo Nacional de Ciencias Naturales-Consejo Superior de Investigaciones Científicas (MNCN-CSIC), E-28006 Madrid, Spain.
  • Catford JA Department of Geography, King's College London, WC2B 4BG London, United Kingdom.
  • Csergő AM Zoology, School of Natural Sciences, Trinity College Dublin, Dublin 2, Ireland.
  • Blomberg SP School of Biological Sciences, University of Queensland, Brisbane, QLD 4072, Australia.
  • Crone EE Department of Biology, Tufts University, Medford, MA 02145.
  • Ehrlén J Department of Ecology, Environment and Plant Sciences, Stockholm University, SE-106 91 Stockholm, Sweden.
  • Garcia MB Pyrenean Institute of Ecology, CSIC, 50059 Zaragoza, Spain.
  • Laine AL Department of Evolutionary Biology and Environmental Studies, University of Zurich, CH-8057 Zurich, Switzerland.
  • Roach DA Department of Biology, University of Virginia, Charlottesville, VA 22904.
  • Salguero-Gómez R Department of Zoology, University of Oxford, OX1 3SZ Oxford, United Kingdom.
  • Wardle GM School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW 2006, Australia.
  • Childs DZ Department of Animal and Plant Sciences, University of Sheffield, S10 2TN Sheffield, United Kingdom.
  • Elderd BD Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803.
  • Finn A Zoology, School of Natural Sciences, Trinity College Dublin, Dublin 2, Ireland.
  • Munné-Bosch S Department of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona, 08028 Barcelona, Spain.
  • Baudraz MEA Zoology, School of Natural Sciences, Trinity College Dublin, Dublin 2, Ireland.
  • Bódis J Georgikon Faculty, University of Pannonia, H-8360 Keszthely, Hungary.
  • Brearley FQ Department of Natural Sciences, Manchester Metropolitan University, M1 5GD Manchester, United Kingdom.
  • Bucharova A Plant Evolutionary Ecology, Institute of Evolution and Ecology, University of Tübingen, 72074 Tübingen, Germany.
  • Caruso CM Department of Integrative Biology, University of Guelph, Guelph, ON N1G 2W1, Canada.
  • Duncan RP Institute for Applied Ecology, University of Canberra, Canberra, ACT 2617, Australia.
  • Dwyer JM School of Biological Sciences, University of Queensland, Brisbane, QLD 4072, Australia.
  • Gooden B CSIRO Health & Biosecurity, CSIRO, Black Mountain, ACT 2601, Australia.
  • Groenteman R Manaaki Whenua-Landcare Research, 7608 Lincoln, New Zealand.
  • Hamre LN Department of Environmental Sciences, Western Norway University of Applied Sciences, N-6856 Sogndal, Norway.
  • Helm A Institute of Ecology and Earth Sciences, University of Tartu, 51005 Tartu, Estonia.
  • Kelly R Zoology, School of Natural Sciences, Trinity College Dublin, Dublin 2, Ireland.
  • Laanisto L Biodiversity and Nature Tourism, Estonian University of Life Sciences, 51006 Tartu, Estonia.
  • Lonati M Department of Agricultural, Forest and Food Science, University of Torino, 10015 Grugliasco, Italy.
  • Moore JL School of Biological Sciences, Monash University, Clayton, VIC 3800, Australia.
  • Morales M Department of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona, 08028 Barcelona, Spain.
  • Olsen SL Norwegian Institute for Nature Research, N-0349 Oslo, Norway.
  • Pärtel M Institute of Ecology and Earth Sciences, University of Tartu, 51005 Tartu, Estonia.
  • Petry WK Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544.
  • Ramula S Department of Biology, University of Turku, 20014 Turku, Finland.
  • Rasmussen PU Department of Ecology, Environment and Plant Sciences, Stockholm University, SE-106 91 Stockholm, Sweden.
  • Enri SR Department of Agricultural, Forest and Food Science, University of Torino, 10015 Grugliasco, Italy.
  • Roeder A Department of Physiological Diversity, Helmholtz Centre for Environmental Research - UFZ, 04103 Leipzig, Germany.
  • Roscher C Department of Physiological Diversity, Helmholtz Centre for Environmental Research - UFZ, 04103 Leipzig, Germany.
  • Saastamoinen M Helsinki Institute of Life Science, University of Helsinki, 00100 Helsinki, Finland.
  • Tack AJM Department of Ecology, Environment and Plant Sciences, Stockholm University, SE-106 91 Stockholm, Sweden.
  • Töpper JP Norwegian Institute for Nature Research, N-5006 Bergen, Norway.
  • Vose GE Department of Ecology and Evolutionary Biology, University of California, Irvine, CA 92697.
  • Wandrag EM Institute for Applied Ecology, University of Canberra, Canberra, ACT 2617, Australia.
  • Wingler A School of Biological, Earth & Environmental Sciences and Environmental Research Institute, University College Cork, Cork T23 N73K, Ireland.
  • Buckley YM Zoology, School of Natural Sciences, Trinity College Dublin, Dublin 2, Ireland.
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  • 2020-02-09
Published in:
  • Proceedings of the National Academy of Sciences of the United States of America. - 2020
adaptation
demography
global change
plant invasion
population genetics
Demography
Gene Flow
Genetic Variation
Introduced Species
Phylogeny
Plantago
English When plants establish outside their native range, their ability to adapt to the new environment is influenced by both demography and dispersal. However, the relative importance of these two factors is poorly understood. To quantify the influence of demography and dispersal on patterns of genetic diversity underlying adaptation, we used data from a globally distributed demographic research network comprising 35 native and 18 nonnative populations of Plantago lanceolata Species-specific simulation experiments showed that dispersal would dilute demographic influences on genetic diversity at local scales. Populations in the native European range had strong spatial genetic structure associated with geographic distance and precipitation seasonality. In contrast, nonnative populations had weaker spatial genetic structure that was not associated with environmental gradients but with higher within-population genetic diversity. Our findings show that dispersal caused by repeated, long-distance, human-mediated introductions has allowed invasive plant populations to overcome environmental constraints on genetic diversity, even without strong demographic changes. The impact of invasive plants may, therefore, increase with repeated introductions, highlighting the need to constrain future introductions of species even if they already exist in an area.
Language
  • English
Open access status
hybrid
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Persistent URL
https://folia.unifr.ch/global/documents/258370
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