2021 article

PHENOTYPIC PLASTICITY MASKS RANGE-WIDE GENETIC DIFFERENTIATION FOR VEGETATIVE BUT NOT REPRODUCTIVE TRAITS IN A SHORT-LIVED PLANT

Villellas, J., Ehrlen, J., Crone, E. E., Csergo, A. M., Garcia, M. B., Laine, A.-L., … Buckley, Y. M. (2021, August 5). ECOLOGY LETTERS.

co-author countries: Australia 🇦🇺 Canada 🇨🇦 Switzerland 🇨🇭 Czechia 🇨🇿 Germany 🇩🇪 Denmark 🇩🇰 Estonia 🇪🇪 Spain 🇪🇸 Finland 🇫🇮 United Kingdom of Great Britain and Northern Ireland 🇬🇧 Hungary 🇭🇺 Ireland 🇮🇪 Italy 🇮🇹 Norway 🇳🇴 New Zealand 🇳🇿 Romania 🇷🇴 Sweden 🇸🇪 United States of America 🇺🇸
author keywords: biomass; common garden experiment; countergradient variation; fecundity; genotype by environment interaction; intraspecific trait variation; observational datasets; root; shoot ratio; specific leaf area; widespread species
MeSH headings : Adaptation, Physiological; Biomass; Masks; Phenotype; Plantago
Source: Web Of Science
Added: August 23, 2021

Abstract Genetic differentiation and phenotypic plasticity jointly shape intraspecific trait variation, but their roles differ among traits. In short‐lived plants, reproductive traits may be more genetically determined due to their impact on fitness, whereas vegetative traits may show higher plasticity to buffer short‐term perturbations. Combining a multi‐treatment greenhouse experiment with observational field data throughout the range of a widespread short‐lived herb, Plantago lanceolata , we (1) disentangled genetic and plastic responses of functional traits to a set of environmental drivers and (2) assessed how genetic differentiation and plasticity shape observational trait–environment relationships. Reproductive traits showed distinct genetic differentiation that largely determined observational patterns, but only when correcting traits for differences in biomass. Vegetative traits showed higher plasticity and opposite genetic and plastic responses, masking the genetic component underlying field‐observed trait variation. Our study suggests that genetic differentiation may be inferred from observational data only for the traits most closely related to fitness.