Characterizing selection on phenotypic plasticity in response to natural environmental heterogeneity

Evolution; International Journal of Organic Evolution
Brooke S Baythavong, Maureen L Stanton

Abstract

Adaptive genetic differentiation and adaptive phenotypic plasticity can increase the fitness of plant lineages in heterogeneous environments. We examine the relative importance of genetic differentiation and plasticity in determining the fitness of the annual plant, Erodium cicutarium, in a serpentine grassland in California. Previous work demonstrated that the serpentine sites within this mosaic display stronger dispersal-scale heterogeneity than nonserpentine sites. We conducted a reciprocal transplant experiment among six sites to characterize selection on plasticity expressed by 180 full-sibling families in response to natural environmental heterogeneity across these sites. Multivariate axes of environmental variation were constructed using a principal components analysis of soil chemistry data collected at every experimental block. Simple linear regressions were used to characterize the intercept, and slope (linear and curvilinear) of reaction norms for each full-sibling family in response to each axis of environmental variation. Multiple linear regression analyses revealed significant selection on trait means and slopes of reaction norms. Multivariate analyses of variance demonstrated genetic differentiation between serpe...Continue Reading

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Citations

Jan 15, 2014·Evolution; International Journal of Organic Evolution·Carl D Schlichting, Matthew A Wund
May 10, 2011·Trends in Genetics : TIG·Jill T AndersonThomas Mitchell-Olds
Aug 21, 2015·Biological Reviews of the Cambridge Philosophical Society·Diego P VázquezFrancisco Bozinovic
Apr 8, 2016·Proceedings. Biological Sciences·Hannah L WoodSusanne P Eriksson
Jul 21, 2016·Evolution; International Journal of Organic Evolution·Greg M WalterDaniel Ortiz-Barrientos
Mar 16, 2017·Proceedings of the National Academy of Sciences of the United States of America·Amelia A WolfPaul C Selmants
Oct 25, 2020·Journal of Evolutionary Biology·Guillaume G Cossard, John R Pannell
Jun 2, 2018·Ecology·Greg M WalterDaniel Ortiz-Barrientos
Feb 16, 2021·Journal of Systematics and Evolution·Jill Anderson, Bao-Hua Song
Mar 10, 2018·Evolution; International Journal of Organic Evolution·Maggie R Wagner, Thomas Mitchell-Olds
Mar 27, 2018·The New Phytologist·Emily B Josephs
Jun 3, 2021·Evolution; International Journal of Organic Evolution·Jill T AndersonMonica A Geber

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