The evolution of adhesiveness as a social adaptation
Cellular adhesion is a key ingredient to sustain collective functions of microbial aggregates. Here, we investigate the evolutionary origins of adhesion and the emergence of groups of genealogically unrelated cells with a game-theoretical model. The considered adhesiveness trait is costly, continuou...
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2015-11-01
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doaj-ddef85df87fa4b1eaacd33f8d69883ea2021-05-05T00:08:14ZengeLife Sciences Publications LtdeLife2050-084X2015-11-01410.7554/eLife.08595The evolution of adhesiveness as a social adaptationThomas Garcia0Guilhem Doulcier1https://orcid.org/0000-0003-3720-9089Silvia De Monte2Institut d'écologie et des sciences de l'environnement, Université Pierre et Marie Curie, Paris, FranceInstitut de Biologie de l’École Normale Supérieure, École Normale Supérieure, PSL Research University, Paris, FranceInstitut de Biologie de l’École Normale Supérieure, École Normale Supérieure, PSL Research University, Paris, FranceCellular adhesion is a key ingredient to sustain collective functions of microbial aggregates. Here, we investigate the evolutionary origins of adhesion and the emergence of groups of genealogically unrelated cells with a game-theoretical model. The considered adhesiveness trait is costly, continuous and affects both group formation and group-derived benefits. The formalism of adaptive dynamics reveals two evolutionary stable strategies, at each extreme on the axis of adhesiveness. We show that cohesive groups can evolve by small mutational steps, provided the population is already endowed with a minimum adhesiveness level. Assortment between more adhesive types, and in particular differential propensities to leave a fraction of individuals ungrouped at the end of the aggregation process, can compensate for the cost of increased adhesiveness. We also discuss the change in the social nature of more adhesive mutations along evolutionary trajectories, and find that altruism arises before directly beneficial behavior, despite being the most challenging form of cooperation.https://elifesciences.org/articles/08595social evolutionmicrobial adhesionadaptive dynamicsaltruism |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Thomas Garcia Guilhem Doulcier Silvia De Monte |
spellingShingle |
Thomas Garcia Guilhem Doulcier Silvia De Monte The evolution of adhesiveness as a social adaptation eLife social evolution microbial adhesion adaptive dynamics altruism |
author_facet |
Thomas Garcia Guilhem Doulcier Silvia De Monte |
author_sort |
Thomas Garcia |
title |
The evolution of adhesiveness as a social adaptation |
title_short |
The evolution of adhesiveness as a social adaptation |
title_full |
The evolution of adhesiveness as a social adaptation |
title_fullStr |
The evolution of adhesiveness as a social adaptation |
title_full_unstemmed |
The evolution of adhesiveness as a social adaptation |
title_sort |
evolution of adhesiveness as a social adaptation |
publisher |
eLife Sciences Publications Ltd |
series |
eLife |
issn |
2050-084X |
publishDate |
2015-11-01 |
description |
Cellular adhesion is a key ingredient to sustain collective functions of microbial aggregates. Here, we investigate the evolutionary origins of adhesion and the emergence of groups of genealogically unrelated cells with a game-theoretical model. The considered adhesiveness trait is costly, continuous and affects both group formation and group-derived benefits. The formalism of adaptive dynamics reveals two evolutionary stable strategies, at each extreme on the axis of adhesiveness. We show that cohesive groups can evolve by small mutational steps, provided the population is already endowed with a minimum adhesiveness level. Assortment between more adhesive types, and in particular differential propensities to leave a fraction of individuals ungrouped at the end of the aggregation process, can compensate for the cost of increased adhesiveness. We also discuss the change in the social nature of more adhesive mutations along evolutionary trajectories, and find that altruism arises before directly beneficial behavior, despite being the most challenging form of cooperation. |
topic |
social evolution microbial adhesion adaptive dynamics altruism |
url |
https://elifesciences.org/articles/08595 |
work_keys_str_mv |
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