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Geographic range size is predicted by plant mating system

Dena Grossenbacher, Ryan Briscoe Runquist, Emma E. Goldberg, Yaniv Brandvain
doi: https://doi.org/10.1101/013417
Dena Grossenbacher
1Department of Plant Biology, University of Minnesota, St. Paul, MN, 55108, USA
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Ryan Briscoe Runquist
1Department of Plant Biology, University of Minnesota, St. Paul, MN, 55108, USA
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Emma E. Goldberg
2Department of Ecology, Evolution and Behavior, University of Minnesota, St. Paul, MN, 55108, USA
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Yaniv Brandvain
1Department of Plant Biology, University of Minnesota, St. Paul, MN, 55108, USA
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Abstract

Species’ ranges vary enormously, and even closest relatives may differ in range size by several orders of magnitude. With data from hundreds of species spanning 20 genera and generic sections, we show that plant species that autonomously reproduce via self-pollination consistently have larger geographic ranges than their close relatives that generally require two parents for reproduction. Further analyses strongly implicate autonomous fertilization in causing this relationship, as it is not driven by traits such as polyploidy or annual life history whose evolution is sometimes correlated with the transition to autonomous self-fertilization. Furthermore, we find that selfers occur at higher maximum latitudes and that disparity in range size between selfers and outcrossers increases with time since their separation. Together, these results show that autonomous reproduction — a critical biological trait that eliminates mate limitation and thus potentially increases the probability of establishment — increases range size.

Footnotes

  • Author emails: dgrossen{at}umn.edu, rbriscoe{at}umn.edu, eeg{at}umn.edu, ybrandva{at}umn.edu

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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 January 05, 2015.
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Geographic range size is predicted by plant mating system
Dena Grossenbacher, Ryan Briscoe Runquist, Emma E. Goldberg, Yaniv Brandvain
bioRxiv 013417; doi: https://doi.org/10.1101/013417
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Geographic range size is predicted by plant mating system
Dena Grossenbacher, Ryan Briscoe Runquist, Emma E. Goldberg, Yaniv Brandvain
bioRxiv 013417; doi: https://doi.org/10.1101/013417

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