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The evosystem: A centerpiece for evolutionary studies

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Papale, François | Not, Fabrice | Bapteste, Éric | Haraoui, Louis‐patrick

Edité par CCSD ; Wiley-VCH Verlag -

International audience. In this paper, we redefine the target of evolutionary explanations by proposing the “evosystem” as an alternative to populations, lineages and species. Evosystems account for changes in the distribution of heritable variation within individual Darwinian populations (evolution by natural selection, drift, or constructive neutral evolution), but also for changes in the networks of interactions within or between Darwinian populations and changes in the abiotic environment (whether these changes are caused by the organic entities or not). The evosystem can thereby become a centerpiece for a redefined evolutionary science, that is, evolutionary studies, that apprehends through a single framework the variety of evolutionary processes that lie at various scales. To illustrate the importance of this broadened perspective on evolution, we use a case of antimicrobial resistance evolution: the spread of the bla NDM gene family and the related resistance to carbapenem antibiotics observed globally, and show how evolutionary studies can contribute to answering contemporary socially relevant challenges.

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