Genetic bottlenecks in time and space: reconstructing invasions from contemporary and historical collections.

ABSTRACT: Herbarium accession data offer a useful historical botanical perspective and have been used to track the spread of plant invasions through time and space. Nevertheless, few studies have utilised this resource for genetic analysis to reconstruct a more complete picture of historical invasion dynamics, including the occurrence of separate introduction events. In this study, we combined nuclear and chloroplast microsatellite analyses of contemporary and historical collections of Senecio madagascariensis, a globally invasive weed first introduced to Australia c. 1918 from its native South Africa. Analysis of nuclear microsatellites, together with temporal spread data and simulations of herbarium voucher sampling, revealed distinct introductions to south-eastern Australia and mid-eastern Austra

SUBMITTER: Dormontt EE 

PROVIDER: S-EPMC4156389 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature