An eco-evolutionary consumer-resource theory of host-microbe symbioses

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ID: 331795
2026
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Abstract
Abstract Symbiotic associations between microorganisms and hosts are universal, diverse, and dynamic. Yet, our ability to represent this complexity mathematically remains limited. We propose extending consumer–resource theory to incorporate evolutionary processes to advance our understanding of symbioses, from pairwise interactions to complex host–microbe assemblages. The resulting eco-evolutionary framework captures feedbacks between host–microbe interaction structure, biotic resource availability, and selection acting across biological scales. Importantly, this approach relaxes the assumption of separated ecological and evolutionary timescales, so that both processes unfold simultaneously. The coupling between ecological and evolutionary dynamics allows key properties of symbioses, such as ecological dependence and functional integration, to emerge from evolving resource-mediated interactions, rather than being imposed a priori. We illustrate the framework with a mathematical model of mycorrhizal symbiosis. The proposed consumer–resource formulation provides a unified basis for linking ecological and evolutionary dynamics in host–microbe symbioses, with implications for both basic theory and applied management.
Reference Key
openalex_W7221043777 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Maria M. Martignoni, Seth R Bordenstein, Canan Karakoç, Rebecca C. Tyson, Sam P. Brown, Jimmy Garnier
Journal journal of evolutionary biology
Year 2026
DOI
10.1093/jeb/voag100
URL
https://doi.org/10.1093/jeb/voag100
Keywords Keywords not found

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