The evolution of quantitative traits in complex environments

Anderson, Jill T.; Wagner, Maggie R.; Rushworth, Catherine A.; Prasad, Kasavajhala V. S. K.; Mitchell-Olds, Thomas

doi:10.1038/hdy.2013.33

Cited by 92 publications

(94 citation statements)

References 144 publications

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“…Consequently, differences in patterns of G Â E variation will influence the ability of populations to evolve new adaptive responses following introduction or in situ environmental challenges. In addition, a better understanding of the genetic architectures underlying reaction norms, such as the effects of modularity versus pleiotropy of regulatory pathways [118], will better inform models of constraint on plasticity evolution in natural populations [67,119].…”

Section: (B) Plasticity and Evolutionary Potentialmentioning

confidence: 99%

Invasions and extinctions through the looking glass of evolutionary ecology

Colautti

Alexander

Dlugosch

et al. 2017

Phil. Trans. R. Soc. B

112

102

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One contribution of 18 to a theme issue 'Human influences on evolution, and the ecological and societal consequences'. Invasive and endangered species reflect opposite ends of a spectrum of ecological success, yet they experience many similar eco-evolutionary challenges including demographic bottlenecks, hybridization and novel environments. Despite these similarities, important differences exist. Demographic bottlenecks are more transient in invasive species, which (i) maintains ecologically relevant genetic variation, (ii) reduces mutation load, and (iii) increases the efficiency of natural selection relative to genetic drift. Endangered species are less likely to benefit from admixture, which offsets mutation load but also reduces fitness when populations are locally adapted. Invading species generally experience more benign environments with fewer natural enemies, which increases fitness directly and also indirectly by masking inbreeding depression. Adaptive phenotypic plasticity can maintain fitness in novel environments but is more likely to evolve in invasive species encountering variable habitats and to be compromised by demographic factors in endangered species. Placed in an eco-evolutionary context, these differences affect the breadth of the ecological niche, which arises as an emergent property of antagonistic selection and genetic constraints. Comparative studies of invasions and extinctions that apply an eco-evolutionary perspective could provide new insights into the environmental and genetic basis of ecological success in novel environments and improve efforts to preserve global biodiversity.This article is part of the themed issue 'Human influences on evolution, and the ecological and societal consequences'.

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Section: (B) Plasticity and Evolutionary Potentialmentioning

confidence: 99%

Invasions and extinctions through the looking glass of evolutionary ecology

Colautti

Alexander

Dlugosch

et al. 2017

Phil. Trans. R. Soc. B

112

102

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“…Much of that descriptive information, in the context of plant breeding, has been founded on the work by Finlay and Wilkinson (1963) and modified by others (Eberhart and Russell, 1966) which qualified G ´ E based on the slope of the regression of the performance of particular genotypes across an environmental gradient. The most basic controlled environment evaluations which by design are expected to provide an overestimation of the variation compared to that found in natural conditions (Anderson et al, 2014). Thus meaningful assessments of G ´ E require long term research as responses are expected to vary significantly from year to year (Agren and Schemske, 2012).…”

Section: Definition and Importance Of G ´ Ementioning

confidence: 99%

Introduction to a Special Issue on Genotype by Environment Interaction

et al. 2016

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Expression of a phenotype is a function of the genotype, the environment, and the differential sensitivity of certain genotypes to different environments, also known as genotype by environment (G × E) interaction. This special issue of Crop Science includes a collection of manuscripts that reviews the long history of G ×E research, describes new and innovative ideas, and outlines future challenges. Improving our understanding of these complex interactions is expected to accelerate plant breeding progress, minimize risk through improved cultivar deployment, and improve the efficiency of crop production through informed agriculture. Achieving these goals requires the integration of broad and diverse science and technology disciplines.

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“…Importantly, regulatory divergence is generally dynamic, potentially exposing phenotypes to natural selection differentially across time and environmental conditions. Biological responses to selection depend heavily on the environmental context, with regard to biotic and abiotic conditions that can act individually or synergistically to either accelerate or constrain trait evolution (Anderson, Wagner, Rushworth, Prasad, & Mitchell‐Olds, 2014). Understanding the extent and timescale of the interactions between different molecular levels in response to the plethora of characteristics of complex environments is a primary goal of evolutionary biology.…”

Section: Introductionmentioning

confidence: 99%

Adaptive sequence evolution is driven by biotic stress in a pair of orchid species (Dactylorhiza) with distinct ecological optima

et al. 2017

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The orchid family is the largest in the angiosperms, but little is known about the molecular basis of the significant variation they exhibit. We investigate here the transcriptomic divergence between two European terrestrial orchids, Dactylorhiza incarnata and Dactylorhiza fuchsii, and integrate these results in the context of their distinct ecologies that we also document. Clear signals of lineage‐specific adaptive evolution of protein‐coding sequences are identified, notably targeting elements of biotic defence, including both physical and chemical adaptations in the context of divergent pools of pathogens and herbivores. In turn, a substantial regulatory divergence between the two species appears linked to adaptation/acclimation to abiotic conditions. Several of the pathways affected by differential expression are also targeted by deviating post‐transcriptional regulation via sRNAs. Finally, D. incarnata appears to suffer from insufficient sRNA control over the activity of RNA‐dependent DNA polymerase, resulting in increased activity of class I transposable elements and, over time, in larger genome size than that of D. fuchsii. The extensive molecular divergence between the two species suggests significant genomic and transcriptomic shock in their hybrids and offers insights into the difficulty of coexistence at the homoploid level. Altogether, biological response to selection, accumulated during the history of these orchids, appears governed by their microenvironmental context, in which biotic and abiotic pressures act synergistically to shape transcriptome structure, expression and regulation.

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The evolution of quantitative traits in complex environments

Cited by 92 publications

References 144 publications

Invasions and extinctions through the looking glass of evolutionary ecology

Invasions and extinctions through the looking glass of evolutionary ecology

Introduction to a Special Issue on Genotype by Environment Interaction

Adaptive sequence evolution is driven by biotic stress in a pair of orchid species (Dactylorhiza) with distinct ecological optima

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