Global urban environmental change drives adaptation in white clover

Santangelo, James S, Ness, Rob W, Cohan, Beata, Fitzpatrick, Connor R, Innes, Simon G, Koch, Sophie, Miles, Lindsay S, Munim, Samreen, Peres-Neto, Pedro R, Prashad, Cindy
et al (show 277 more authors) (2022) Global urban environmental change drives adaptation in white clover. SCIENCE, 375 (6586). 1275-+.

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Urbanization transforms environments in ways that alter biological evolution. We examined whether urban environmental change drives parallel evolution by sampling 110,019 white clover plants from 6169 populations in 160 cities globally. Plants were assayed for a Mendelian antiherbivore defense that also affects tolerance to abiotic stressors. Urban-rural gradients were associated with the evolution of clines in defense in 47% of cities throughout the world. Variation in the strength of clines was explained by environmental changes in drought stress and vegetation cover that varied among cities. Sequencing 2074 genomes from 26 cities revealed that the evolution of urban-rural clines was best explained by adaptive evolution, but the degree of parallel adaptation varied among cities. Our results demonstrate that urbanization leads to adaptation at a global scale.

Item Type: Article
Uncontrolled Keywords: Trifolium, Hydrogen Cyanide, Cities, Ecosystem, Adaptation, Physiological, Genes, Plant, Genome, Plant, Urbanization, Rural Population, Biological Evolution
Divisions: Faculty of Health and Life Sciences
Faculty of Health and Life Sciences > Institute of Infection, Veterinary and Ecological Sciences
Depositing User: Symplectic Admin
Date Deposited: 21 Feb 2023 16:29
Last Modified: 21 Feb 2023 16:29
DOI: 10.1126/science.abk0989
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