Microbial interactions affect the tempo and mode of antibiotic resistance 
evolution

Zandbergen, Laurens E.; van den Heuvel, Joost; Farr, Andrew; Zwaan, Bas J.; de Visser, J. Arjan G. M.; de Vos, Marjon G. J.

doi:10.1101/2024.06.06.597700

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Microbial interactions affect the tempo and mode of antibiotic resistance evolution

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Farr, Andrew
Research Group Microbial Genetics (Farr), Department Microbial Population Biology (Rainey), Max Planck Institute for Evolutionary Biology, Max Planck Society;

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https://www.biorxiv.org/content/early/2024/11/17/2024.06.06.597700
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Citation

Zandbergen, L. E., van den Heuvel, J., Farr, A., Zwaan, B. J., de Visser, J. A. G. M., & de Vos, M. G. J. (in preparation). Microbial interactions affect the tempo and mode of antibiotic resistance evolution.

Cite as: https://hdl.handle.net/21.11116/0000-0011-C5AC-D

Abstract

The global rise of antibiotic resistance impedes the treatment of bacterial infections. To limit the emergence and evolution of antibiotic resistance it is important to understand how bacterial interactions in multispecies communities affect the course of evolution. We investigated how ecological interactions between microbes derived from polymicrobial urinary tract infections affect the tempo and mode of antibiotic resistance evolution. We show that for representative strains of three uropathogens, Escherichia coli, Klebsiella pneumoniae and Enterococcus faecium, the rate and evolutionary trajectories towards antibiotic resistance differ depending on the conditioned medium mediated interactions with other microbes that alter their growth and antibiotic tolerance. Replicate lineages of the same species evolved under similar ecological conditions show parallel evolutionary trajectories, and resistance mutations and other functional targets selected differed between these conditions. Our findings demonstrate that bacterial interactions differentially affect the evolutionary potential of antibiotic resistance evolution.