Social evolution in multispecies biofilms.

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State: Public
Version: Final published version
Serval ID
serval:BIB_CCA6C249B0F3
Type
Article: article from journal or magazin.
Collection
Publications
Title
Social evolution in multispecies biofilms.
Journal
Proceedings of the National Academy of Sciences of the United States of America
Author(s)
Mitri S., Xavier J.B., Foster K.R.
ISSN
1091-6490 (Electronic)
ISSN-L
0027-8424
Publication state
Published
Issued date
2011
Volume
108 Suppl 2
Pages
10839-10846
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't Publication Status: ppublish
Abstract
Microbial ecology is revealing the vast diversity of strains and species that coexist in many environments, ranging from free-living communities to the symbionts that compose the human microbiome. In parallel, there is growing evidence of the importance of cooperative phenotypes for the growth and behavior of microbial groups. Here we ask: How does the presence of multiple species affect the evolution of cooperative secretions? We use a computer simulation of spatially structured cellular groups that captures key features of their biology and physical environment. When nutrient competition is strong, we find that the addition of new species can inhibit cooperation by eradicating secreting strains before they can become established. When nutrients are abundant and many species mix in one environment, however, our model predicts that secretor strains of any one species will be surrounded by other species. This "social insulation" protects secretors from competition with nonsecretors of the same species and can improve the prospects of within-species cooperation. We also observe constraints on the evolution of mutualistic interactions among species, because it is difficult to find conditions that simultaneously favor both within- and among-species cooperation. Although relatively simple, our model reveals the richness of interactions between the ecology and social evolution of multispecies microbial groups, which can be critical for the evolution of cooperation.
Keywords
Bacteria/growth & development, Biofilms/growth & development, Biological Evolution, Computer Simulation, Ecology, Environment, Genome, Bacterial, Species Specificity
Pubmed
Web of science
Open Access
Yes
Create date
09/01/2015 17:55
Last modification date
20/08/2019 16:47
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