DOI: 10.5061/dryad.0p67v8g
title: Data from: Climate change shifts natural selection and the adaptive potential of the perennial forb Boechera stricta in the Rocky Mountains

description: Heritable genetic variation is necessary for populations to evolve in
 response to anthropogenic climate change. However, antagonistic genetic
 correlations among traits may constrain the rate of adaptation, even if
 substantial genetic variation exists. We examine potential genetic
 responses to selection by comparing multivariate genetic
 variance-covariances of traits and fitness (multivariate Robertson-Price
 identities) across different environments in a reciprocal transplant
 experiment of the forb Boechera stricta in the Rocky Mountains. By
 transplanting populations into four common gardens arrayed along an
 elevational gradient, and exposing populations to control and snow removal
 treatments, we simulated future and current climates and snowmelt regimes.
 Genetic variation in flowering and germination phenology declined in
 plants moved downslope to warmer, drier sites, suggesting that these
 traits may have a limited ability to evolve under future climates.
 Simulated climate change via snow removal altered the strength of
 selection on flowering traits, but we found little evidence that genetic
 correlations among traits are likely to affect the rate of adaptation to
 climate change. Overall, our results suggest that climate change may alter
 the evolutionary potential of B. stricta, but reduced expression of
 genetic variation may be a larger impediment to adaptation than
 constraints imposed by antagonistic genetic correlations.
description: Rosette
 traitsDataset of traits
 measured on rosettes planted in the four experimental gardens, including
 leaf traits, flowering traits, and fitness. Trait descriptions are given
 on the first tab under Metadata.Rosette_traits.xlsxSeedling traitsDataset of traits measured on individuals planted as seeds in the four experimental gardens, including germination success, germination phenology, and germinant survival. Trait descriptions are given on the first tab under Metadata.Seedling_traits.xlsxRosette pedigreeInput file for MCMCglmm containing pedigree information for rosettes in the rosette traits dataset. The first column indicates an individual, and the second and third columns indicate the father and mother of the individual (which are identical in a selfing species).Rosette_pedigree.txtSeedling pedigreeInput file for MCMCglmm containing pedigree information for individuals planted as seeds in the seedling traits dataset. The first column indicates an individual, and the second and third columns indicate the father and mother of the individual (which are identical in a selfing species).Seedling_pedigree.txtR code for calculating genetic variation in rosette traitsExample R code for estimating variance in rosette traits using the package MCMCglmm, with the priors and settings used in the main analyses.Vg_rosette_traits.RR code for calculating genetic variation in seedling traitsExample R code for estimating variance in seedling traits using the package MCMCglmm, with the priors and settings used in the main analyses.Vg_seedling_traits.RR code for calculating Robertson-Price identities in rosette leaf traitsExample R code for estimating genetic variance-covariances (Roberston-Price identities) in leaf traits from the rosette dataset using the package MCMCglmm, with the priors and settings used in the main analyses.Gmat_rosette_leaf_traits.RR code for calculating Robertson-Price identities in rosette flowering traits and leaf herbivoryExample R code for estimating genetic variance-covariances (Roberston-Price identities) in flowering traits and leaf herbivory from the rosette dataset using the package MCMCglmm, with the priors and settings used in the main analyses.Gmat_rosette_flowering_traits.R