Admixture between native and invasive populations may increase invasiveness of Mimulus guttatus.

ABSTRACT: 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. gutt

SUBMITTER: van Kleunen M 

PROVIDER: S-EPMC4614753 | biostudies-literature | 2015 Sep

REPOSITORIES: biostudies-literature