[article]
| Titre : |
Admixture between native and invasive populations may increase invasiveness of Mimulus guttatus |
| Type de document : |
Électronique |
| Auteurs : |
Mark van Kleunen (1973-) ; M Röckle ; M Stift |
| Année de publication : |
2015 |
| Article en page(s) : |
10 p. |
| Langues : |
Anglais (eng) |
| Catégories : |
[CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes
|
| Mots-clés : |
Mimulus guttatus Fisch. ex DC., 1813 |
| Résumé : |
Self-fertilization and admixture of genotypes from different populations can have major fitness consequences in native species. However, few studies have addressed their potential roles in invasive species. Here, we used plants of Mimulus guttatus from seven native North American, three invasive Scottish and four invasive New Zealand populations to address this. We created seeds from self-fertilization, within-population outcrossing, between-population outcrossing within the same range, and outcrossing between the native and invasive ranges. A greenhouse experiment showed that native and invasive plants of M. guttatus suffered to similar degrees from inbreeding depression, in terms of asexual reproduction and biomass production. After outcrossing with plants from other populations, M. guttatus benefited from heterosis, in terms of asexual and sexual reproduction, and biomass production, particularly when plants from native and invasive populations were crossed. This suggests that, when novel genotypes of M. guttatus from the native North American range will be introduced to the invasive ranges, subsequent outcrossing with M. guttatus plants that are already there might further boost invasiveness of this species. |
| Lien pérenne : |
DOI : 10.1098/rspb.2015.1487  |
| Permalink : |
https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=142799 |
in Proceedings of the Royal Society. Biological Sciences > 282 (2015) . - 10 p.
Kleunen, Mark van (1973-), Röckle, M, Stift, M
2015
Admixture between native and invasive populations may increase invasiveness of Mimulus guttatus.
Proceedings of the Royal Society. Biological Sciences, 282: 10 p..
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Affiner la rechercheAdmixture between native and invasive populations may increase invasiveness of Mimulus guttatus in Proceedings of the Royal Society. Biological Sciences, 282 (2015)
