Global gene flow releases invasive plants from environmental constraints on genetic diversity
Trevor R. Hodkinson; Richard P. Duncan; Ben Gooden; Gregory E. Vose; Deborah A. Roach; Annabel L. Smith; Roberto Salguero-Gómez; Ruth Kelly; Ronny Groenteman; Lauri Laanisto; Liv Norunn Hamre; Marjo Saastamoinen; Elizabeth E. Crone; Alain Finn; Ayco J. M. Tack; Dylan Z. Childs; Anna Roeder; Judit Bódis; Maude E. A. Baudraz; Anna-Liisa Laine; Melanie Morales; Michele Lonati; Christina M. Caruso; Joslin L. Moore; Yvonne M. Buckley; Satu Ramula; Anna Bucharova; John M. Dwyer; Aveliina Helm; William K. Petry; Joachim Paul Töpper; Pil U. Rasmussen; Sergi Munné-Bosch; Elizabeth M. Wandrag; Simone P. Blomberg; Anna Mária Csergo; Jesus Villellas; Johan Ehrlén; Jane A. Catford; Simone Ravetto Enri; Christiane Roscher; Francis Q. Brearley; Maria B. Garcia; Bret D. Elderd; Glenda M. Wardle; Astrid Wingler; Meelis Pärtel; Siri Lie Olsen
Global gene flow releases invasive plants from environmental constraints on genetic diversity
Trevor R. Hodkinson
Richard P. Duncan
Ben Gooden
Gregory E. Vose
Deborah A. Roach
Annabel L. Smith
Roberto Salguero-Gómez
Ruth Kelly
Ronny Groenteman
Lauri Laanisto
Liv Norunn Hamre
Marjo Saastamoinen
Elizabeth E. Crone
Alain Finn
Ayco J. M. Tack
Dylan Z. Childs
Anna Roeder
Judit Bódis
Maude E. A. Baudraz
Anna-Liisa Laine
Melanie Morales
Michele Lonati
Christina M. Caruso
Joslin L. Moore
Yvonne M. Buckley
Satu Ramula
Anna Bucharova
John M. Dwyer
Aveliina Helm
William K. Petry
Joachim Paul Töpper
Pil U. Rasmussen
Sergi Munné-Bosch
Elizabeth M. Wandrag
Simone P. Blomberg
Anna Mária Csergo
Jesus Villellas
Johan Ehrlén
Jane A. Catford
Simone Ravetto Enri
Christiane Roscher
Francis Q. Brearley
Maria B. Garcia
Bret D. Elderd
Glenda M. Wardle
Astrid Wingler
Meelis Pärtel
Siri Lie Olsen
NATL ACAD SCIENCES
Julkaisun pysyvä osoite on:
https://urn.fi/URN:NBN:fi-fe2021042823061
https://urn.fi/URN:NBN:fi-fe2021042823061
Tiivistelmä
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.
Kokoelmat
- Rinnakkaistallenteet [19207]