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Evolution of simple multicellularity increases environmental complexity

View ORCID ProfileMaría Rebolleda-Gómez, William C. Ratcliff, Jonathon Fankhauser, View ORCID ProfileMichael Travisano
doi: https://doi.org/10.1101/067991
María Rebolleda-Gómez
aDepartment of Ecology, Evolution and Behavior, University of Minnesota, , USA
bMinnesota Center for Philosophy of Science, University of Minnesota, , USA
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William C. Ratcliff
aDepartment of Ecology, Evolution and Behavior, University of Minnesota, , USA
cSchool of Biology, Georgia Institute of Technology, , USA
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Jonathon Fankhauser
dThe BioTechnology Institute, University of Minnesota, , USA
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Michael Travisano
aDepartment of Ecology, Evolution and Behavior, University of Minnesota, , USA
bMinnesota Center for Philosophy of Science, University of Minnesota, , USA
dThe BioTechnology Institute, University of Minnesota, , USA
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Abstract

Multicellularity—the integration of previously autonomous cells into a new, more complex organism—is one of the major transitions in evolution. Multicellularity changed evolutionary possibilities and facilitated the evolution of increased complexity. Transitions to multicellularity are associated with rapid diversification and increased ecological opportunity but the potential mechanisms are not well understood. In this paper we explore the ecological mechanisms of multicellular diversification during experimental evolution of the brewer’s yeast, Saccharomyces cerevisiae. The evolution from single cells into multicellular clusters modifies the structure of the environment, changing the fluid dynamics and creating novel ecological opportunities. This study demonstrates that even in simple conditions, incipient multicellularity readily changes the environment, facilitating the origin and maintenance of diversity.

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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 August 05, 2016.
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Evolution of simple multicellularity increases environmental complexity
María Rebolleda-Gómez, William C. Ratcliff, Jonathon Fankhauser, Michael Travisano
bioRxiv 067991; doi: https://doi.org/10.1101/067991
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Evolution of simple multicellularity increases environmental complexity
María Rebolleda-Gómez, William C. Ratcliff, Jonathon Fankhauser, Michael Travisano
bioRxiv 067991; doi: https://doi.org/10.1101/067991

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