No genetic erosion after five generations for Impatiens glandulifera populations across the invaded range in Europe.

ABSTRACT:

Background

The observation that many alien species become invasive despite low genetic diversity has long been considered the 'genetic paradox' in invasion biology. This paradox is often resolved through the temporal buildup genetic diversity through multiple introduction events. These temporal dynamics in genetic diversity are especially important for annual invasive plants that lack a persistent seed bank, for which population persistence is strongly dependent on consecutive seed 're-establishment' in each growing season. Theory predicts that the number of seeds during re-establishment, and the levels of among-population gene flow can strongly affect recolonization dynamics, resulting in either an erosion or build-up of population genetic diversity through time. This study focuse

SUBMITTER: Helsen K 

PROVIDER: S-EPMC6379953 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature