10.5061/DRYAD.4R1K05T
Bock, Dan G.
University of British Columbia
Kantar, Michael B.
University of British Columbia
Caseys, Celine
University of British Columbia
Matthey-Doret, Remi
University of British Columbia
Rieseberg, Loren H.
University of British Columbia
Data from: Evolution of invasiveness by genetic accommodation
Dryad
dataset
2019
Helianthus tuberosus
Helianthus divaricatus
Helianthus hirsutus
Helianthus grosseserratus
2019-03-16T00:00:00Z
2019-03-16T00:00:00Z
en
https://doi.org/10.1038/s41559-018-0553-z
118150 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Invasion success of species introduced to novel environments may be
facilitated by adaptive evolution and by phenotypic plasticity. Here we
investigate the independent and joint contribution of both mechanisms as
drivers of invasiveness in the perennial sunflower Helianthus tuberosus.
We show that invasive genotypes have multiple origins, and that invasive
spread was facilitated by the repeated evolution of extreme values in a
single trait, clonality. In line with genetic accommodation theory, we
establish that this evolutionary transition occurred by refining a
preexisting plastic response of clonality to water availability. Further,
we demonstrate that under the non-drought conditions typically experienced
by this plant in its introduced range, invasive spread is mediated by
hybrid vigor and/or two major additive-effect loci, and that these
mechanisms are complementary. Thus, in H. tuberosus, evolution of
invasiveness was facilitated by phenotypic plasticity, and involved the
use of multiple genetic solutions to achieve the same invasiveness trait.
Common garden and greenhouse trait data for 305 H. tuberosus
accessionsH_tuberosus_CG_GR_traits.csvData for the field invasiveness
experimentfield_invasiveness_experiment.csvRhizome numbers from the
greenhouse drought experimentgreenhouse_drought_experiment.csvAllelopathy
estimates for the progenitor species of H.
tuberosusallelopathy_progenitor_species.csvSoil water content measurements
for the invasiveness field experimentwater_content_data.csv
Europe
North America