10.5061/DRYAD.F9S4424
Wagner, Maggie R.
North Carolina State University
Duke University
Mitchell-Olds, Thomas
Duke University
Data from: Plasticity of plant defense and its evolutionary implications
in wild populations of Boechera stricta
Dryad
dataset
2018
Boechera stricta
Glucosinolate
Phytochemistry
defense
National Science Foundation
https://ror.org/021nxhr62
DEB-1311440
2018-03-02T20:35:35Z
2018-03-02T20:35:35Z
en
https://doi.org/10.1111/evo.13469
408055 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Phenotypic plasticity is thought to impact evolutionary trajectories by
shifting trait values in a direction that is either favored by natural
selection (“adaptive plasticity”) or disfavored (“nonadaptive”
plasticity). However, it is unclear how commonly each of these types of
plasticity occurs in natural populations. To answer this question, we
measured glucosinolate defensive chemistry and reproductive fitness in
over 1,500 individuals of the wild perennial mustard Boechera stricta,
planted in four common gardens across central Idaho, USA. Glucosinolate
profiles—including total glucosinolate concentration as well as the
relative abundances and overall diversity of different compounds—were
strongly plastic both among habitats and within habitats. Patterns of
glucosinolate plasticity varied greatly among genotypes. Plasticity among
sites was predicted to affect fitness in 27.1% of cases; more often than
expected by chance, glucosinolate plasticity increased rather than
decreased relative fitness. In contrast, we found no evidence for
within-habitat selection on glucosinolate reaction norm slopes (i.e.,
plasticity along a continuous environmental gradient). Together, our
results indicate that glucosinolate plasticity may improve the ability of
B. stricta populations to persist after migration to new habitats.
raw_dataContains six tab-delimited files with all data used in this
analysis. See README file for details.GSplasticity_codeR code to generate
all figures and reproduce all analyses
USA
Idaho