Global gene flow releases invasive plants from environmental constraints on genetic diversity
| Autor: | William K. Petry, Joslin L. Moore, R. Groenteman, Anna Roeder, Anna Mária Csergő, Aveliina Helm, Pil U. Rasmussen, Elizabeth M. Wandrag, Siri Lie Olsen, Judit Bódis, Bret D. Elderd, John M. Dwyer, Astrid Wingler, Christina M. Caruso, María B. García, Simone P. Blomberg, Satu Ramula, Simone Ravetto Enri, Ayco J. M. Tack, Annabel L. Smith, Maude E.A. Baudraz, Ruth Kelly, Marjo Saastamoinen, Jane A. Catford, Roberto Salguero-Gómez, Trevor R. Hodkinson, Dylan Z. Childs, Anna-Liisa Laine, Melanie Morales, Liv Norunn Hamre, Michele Lonati, Francis Q. Brearley, Gregory E. Vose, Glenda M. Wardle, Alain Finn, Sergi Munné-Bosch, Lauri Laanisto, Ben Gooden, Anna Bucharova, Elizabeth E. Crone, Johan Ehrlén, Christiane Roscher, Yvonne M. Buckley, Meelis Pärtel, Richard P. Duncan, Jesús Villellas, Deborah A. Roach, Joachim Töpper |
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| Přispěvatelé: | Science Foundation Ireland, European Research Council, European Commission, Generalitat de Catalunya, Ministerio de Economía y Competitividad (España), Ministry of Education and Research (Estonia), Ministry of Business, Innovation, and Employment (New Zealand), Academy of Finland |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Gene Flow
0106 biological sciences Plant invasion Population genetics Range (biology) Biology 010603 evolutionary biology 01 natural sciences Invasive species 03 medical and health sciences Geographical distance Adaptation Plantago Global change Phylogeny Demography 030304 developmental biology 0303 health sciences Genetic diversity Multidisciplinary Ecology Genetic Variation Biological Sciences 15. Life on land Genetic structure Biological dispersal Introduced Species |
| Zdroj: | Proceedings of the National Academy of Sciences USA Proceedings of the National Academy of Sciences, pp. 201915848 Digital.CSIC. Repositorio Institucional del CSIC instname Proceedings of the National Academy of Sciences of the United States of America |
| ISSN: | 0027-8424 1091-6490 |
| Popis: | Significance We found that long-distance dispersal and repeated introductions by humans have shaped adaptive potential in a globally distributed invasive species. Some plant species, therefore, do not need strong demographic changes to overcome environmental constraints that exist in the native range; simply mixing genetic stock from multiple populations can provide an adaptive advantage. This work highlights the value of preventing future introduction events for problematic invasive species, even if the species already exists in an area. 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. |
| Databáze: | OpenAIRE |
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