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The central role of the interspecific interactions in the evolution of microbial communities

View ORCID ProfileTiffany Raynaud, View ORCID ProfileManuel Blouin, View ORCID ProfileMarion Devers-Lamrani, View ORCID ProfileDominique Garmyn, View ORCID ProfileAymé Spor
doi: https://doi.org/10.1101/2022.01.17.476584
Tiffany Raynaud
1Agroécologie, AgroSup Dijon, INRAE, Univ. Bourgogne, Univ. Bourgogne Franche-Comté, F-21000, Dijon, France
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Manuel Blouin
1Agroécologie, AgroSup Dijon, INRAE, Univ. Bourgogne, Univ. Bourgogne Franche-Comté, F-21000, Dijon, France
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Marion Devers-Lamrani
1Agroécologie, AgroSup Dijon, INRAE, Univ. Bourgogne, Univ. Bourgogne Franche-Comté, F-21000, Dijon, France
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Dominique Garmyn
1Agroécologie, AgroSup Dijon, INRAE, Univ. Bourgogne, Univ. Bourgogne Franche-Comté, F-21000, Dijon, France
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Aymé Spor
1Agroécologie, AgroSup Dijon, INRAE, Univ. Bourgogne, Univ. Bourgogne Franche-Comté, F-21000, Dijon, France
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  • For correspondence: ayme.spor@inrae.fr
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ABSTRACT

The interspecific interactions play an important role in the establishment of a community phenotype. Furthermore, the evolution of a community can not only occur through an evolution of the species composing the community but also of the interactions among them. In this study, we investigated how widespread was the evolution of interspecific interactions in the evolutionary response of eight two-bacterial species communities regarding productivity. We found evidence for an evolution of the interactions in half of the studied communities which gave rise to a mean change of 15% in community productivity as compared to what was expected from the individual responses. Even when the interactions did not evolve themselves, they influenced the evolutionary responses of the bacterial strains within the communities which further affected community response. We found that the evolution within a community often promoted an adaptation of the bacterial strains to the abiotic environment, especially for the dominant strain in a community. Overall, this study suggested that the evolution of the interspecific interactions was frequent and that it could increase community response to evolution. We propose that the existence of an evolution of the interspecific interactions can justify the consideration of the community as a unit of selection.

Competing Interest Statement

The authors have declared no competing interest.

Footnotes

  • ↵# These authors supervised the study.

  • Conflict of interest, The authors declare that they have no conflict of 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 January 17, 2022.
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The central role of the interspecific interactions in the evolution of microbial communities
Tiffany Raynaud, Manuel Blouin, Marion Devers-Lamrani, Dominique Garmyn, Aymé Spor
bioRxiv 2022.01.17.476584; doi: https://doi.org/10.1101/2022.01.17.476584
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The central role of the interspecific interactions in the evolution of microbial communities
Tiffany Raynaud, Manuel Blouin, Marion Devers-Lamrani, Dominique Garmyn, Aymé Spor
bioRxiv 2022.01.17.476584; doi: https://doi.org/10.1101/2022.01.17.476584

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