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Rapid adaptation and range expansion in response to agriculture over the last two centuries

View ORCID ProfileJulia Kreiner, View ORCID ProfileSergio M. Latorre, View ORCID ProfileHernán A. Burbano, View ORCID ProfileJohn R. Stinchcombe, View ORCID ProfileSarah P. Otto, View ORCID ProfileDetlef Weigel, View ORCID ProfileStephen I. Wright
doi: https://doi.org/10.1101/2022.02.25.482047
Julia Kreiner
1Department of Botany, University of British Columbia, Vancouver, Canada
2Biodiversity Research Centre, University of British Columbia, Vancouver, Canada
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  • For correspondence: julia.kreiner@ubc.ca
Sergio M. Latorre
3Centre for Life’s Origins and Evolution, Department of Genetics, Evolution and Environment, University College London, London, UK
4Department of Molecular Biology, Max Planck Institute for Biology Tübingen, Tübingen, Germany
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Hernán A. Burbano
3Centre for Life’s Origins and Evolution, Department of Genetics, Evolution and Environment, University College London, London, UK
4Department of Molecular Biology, Max Planck Institute for Biology Tübingen, Tübingen, Germany
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John R. Stinchcombe
5Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON, Canada
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Sarah P. Otto
2Biodiversity Research Centre, University of British Columbia, Vancouver, Canada
6Department of Zoology, University of British Columbia, Vancouver, Canada
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Detlef Weigel
4Department of Molecular Biology, Max Planck Institute for Biology Tübingen, Tübingen, Germany
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Stephen I. Wright
5Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON, Canada
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Abstract

North America has seen a massive increase in cropland use since 1800, accompanied more recently by the intensification of agricultural practices. Through genome analysis of present-day and historical samples spanning environments over the last two centuries, we studied the impact of these changes in farming on the extent and tempo of evolution in the native common waterhemp (Amaranthus tuberculatus), a now pervasive agricultural weed. Modern agriculture has imposed strengths of selection rarely observed in the wild (0.027-0.10), with striking shifts in allele frequency trajectories since agricultural intensification in the 1960s. An evolutionary response to this extreme selection was facilitated by a concurrent human-mediated range shift. By reshaping genome-wide diversity and variation for fitness, agriculture has driven the success of this 21st-century weed.

One Sentence Summary Modern agriculture has dramatically shaped the evolution of a native plant into an agricultural weed through imposing strengths of selection rarely observed in the wild.

Competing Interest Statement

The authors have declared no competing interest.

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license.
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Posted March 01, 2022.
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Rapid adaptation and range expansion in response to agriculture over the last two centuries
Julia Kreiner, Sergio M. Latorre, Hernán A. Burbano, John R. Stinchcombe, Sarah P. Otto, Detlef Weigel, Stephen I. Wright
bioRxiv 2022.02.25.482047; doi: https://doi.org/10.1101/2022.02.25.482047
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Rapid adaptation and range expansion in response to agriculture over the last two centuries
Julia Kreiner, Sergio M. Latorre, Hernán A. Burbano, John R. Stinchcombe, Sarah P. Otto, Detlef Weigel, Stephen I. Wright
bioRxiv 2022.02.25.482047; doi: https://doi.org/10.1101/2022.02.25.482047

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