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Effects of Genetic Perturbation on Seasonal Life History Plasticity

by Martin, Laura J , Egan, J. Franklin , Welch, Stephen M , Petipas, Renee , Knapp, Mary C , Coupland, George , Schmitt, Johanna , Moyers, Brook T , Charbit, Erika , Roe, Judith L , Giakountis, Antonis , Sim, Sheina , Lopez-Gallego, Cristina , Cooper, Martha D , Walker, Alexis , Wilczek, Amity M , Muir, Christopher D , Anderson, Jillian

in Adaptation, Physiological / Agronomy. Soil science and plant productions / Arabidopsis - genetics / Arabidopsis - growth & development / Arabidopsis thaliana / Autumn / Biological and medical sciences / Botany / Climate change / Climate models / cold / Environment / field experimentation / Field tests / Flowering / Flowers - growth & development / Fundamental and applied biological sciences. Psychology / Genetics / Genetics and breeding of economic plants / Genotypes / Indigenous species / Life cycles / Life history / loci / Modeling / mutants / Mutation / Natural environment / Photoperiod / Planting / Plants / Seasons / Signal Transduction / Summer / Vernalization

2009

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Effects of Genetic Perturbation on Seasonal Life History Plasticity

2009

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2009

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Journal Article

Effects of Genetic Perturbation on Seasonal Life History Plasticity

Martin, Laura J,

Egan, J. Franklin,

Welch, Stephen M,

Petipas, Renee,

Knapp, Mary C,

Coupland, George,

Schmitt, Johanna,

Moyers, Brook T,

Charbit, Erika,

Roe, Judith L,

Giakountis, Antonis,

Sim, Sheina,

Lopez-Gallego, Cristina,

Cooper, Martha D,

Walker, Alexis,

Wilczek, Amity M,

Muir, Christopher D,

Anderson, Jillian

2009

Overview

Like many species, the model plant Arabidopsis thaliana exhibits multiple different life histories in natural environments. We grew mutants impaired in different signaling pathways in field experiments across the species' native European range in order to dissect the mechanisms underlying this variation. Unexpectedly, mutational loss at loci implicated in the cold requirement for flowering had little effect on life history except in late-summer cohorts. A genetically informed photothermal model of progression toward flowering explained most of the observed variation and predicted an abrupt transition from autumn flowering to spring flowering in late-summer germinants. Environmental signals control the timing of this transition, creating a critical window of acute sensitivity to genetic and climatic change that may be common for seasonally regulated life history traits.

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Publisher

American Association for the Advancement of Science,The American Association for the Advancement of Science

Subject

Adaptation, Physiological

/ Agronomy. Soil science and plant productions

/ Arabidopsis - genetics

/ Arabidopsis - growth & development

/ Arabidopsis thaliana

/ Autumn

/ Biological and medical sciences