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Real-time divergent evolution in plants driven by pollinators [Nature]

Keywords : ecologie évolutive, evolution expérimentale, ecologie végétale, pollinisation

par Frédéric Magné - publié le

Pollinator-driven diversification is thought to be a major source of floral variation in plants. Our knowledge of this process is, however, limited to indirect assessments of evolutionary changes. Here, we employ experimental evolution with fast cycling Brassica rapa plants to demonstrate adaptive evolution driven by different pollinators. Our study shows pollinator-driven divergent selection as well as divergent evolution in plant traits. Plants pollinated by bumblebees evolved taller size and more fragrant flowers with increased ultraviolet reflection.(...)

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