Title | Eco-evolutionary Dynamics Set the Tempo and Trajectory of Metabolic Evolution in Multispecies Communities |
Publication Type | Journal Article |
Year of Publication | 2020 |
Authors | Evans R., Beckerman A.P, Wright R.CT, McQueen-Mason S., Bruce N.C, Brockhurst M.A |
Journal | Current Biology |
Volume | 30 |
Pagination | 10 |
Date Published | Dec |
Type of Article | Article |
ISBN Number | 0960-9822 |
Accession Number | WOS:000604624500003 |
Keywords | ADAPTATION, Biochemistry & Molecular Biology, Cell Biology, diversity, framework, genome, Life Sciences & Biomedicine - Other, microbiome, productivity, species interactions, Topics |
Abstract | The eco-evolutionary dynamics of microbial communities are predicted to affect both the tempo and trajectory of evolution in constituent species [1]. While community composition determines available niche space, species sorting dynamically alters composition, changing over time the distribution of vacant niches to which species adapt [2], altering evolutionary trajectories [3, 4]. Competition for the same niche can limit evolutionary potential if population size and mutation supply are reduced [5, 6] but, alternatively, could stimulate evolutionary divergence to exploit vacant niches if character displacement results from the coevolution of competitors [7, 8]. Under more complex ecological scenarios, species can create new niches through their exploitation of complex resources, enabling others to adapt to occupy these newly formed niches [9, 10]. Disentangling the drivers of natural selection within such communities is extremely challenging, and it is thus unclear how eco-evolutionary dynamics drive the evolution of constituent taxa. We tracked the metabolic evolution of a focal species during adaptation to wheat straw as a resource both in monoculture and in poly cultures wherein on-going eco-evolutionary community dynamics were either permitted or prevented. Species interactions accelerated metabolic evolution. Eco-evolutionary dynamics drove increased use of recalcitrant substrates by the focal species, whereas greater exploitation of readily digested substrate niches created by other species evolved if on-going eco-evolutionary dynamics were prevented. Increased use of recalcitrant substrates was associated with parallel evolution of tctE, encoding a carbon metabolism regulator. Species interactions and species sorting set, respectively, the tempo and trajectory of evolutionary divergence among communities, selecting distinct ecological functions in otherwise equivalent ecosystems.
|
Short Title | Curr. Biol.Curr. Biol. |
Alternate Journal | Curr. Biol. |
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Evans, Rachael Beckerman, Andrew P. Wright, Rosanna C. T. McQueen-Mason, Simon Bruce, Neil C. Brockhurst, Michael A.
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