On the fast track: hybrids adapt more rapidly than parental populations in a novel environment.
| Autor: | Kulmuni J; Organismal & Evolutionary Biology Research Programme, University of Helsinki, Helsinki, Finland.; Tvärminne Zoological Station, University of Helsinki, Hanko, Finland.; Institute for Biodiversity and Ecosystem Dynamics, Department of Evolutionary and Population Biology, University of Amsterdam, Amsterdam, The Netherlands., Wiley B; Department of Zoology and Biodiversity Research Center, University of British Columbia, Vancouver, Canada., Otto SP; Department of Zoology and Biodiversity Research Center, University of British Columbia, Vancouver, Canada. |
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| Jazyk: | angličtina |
| Zdroj: | Evolution letters [Evol Lett] 2023 Mar 01; Vol. 8 (1), pp. 128-136. Date of Electronic Publication: 2023 Mar 01 (Print Publication: 2024). |
| DOI: | 10.1093/evlett/qrad002 |
| Abstrakt: | Rates of hybridization are predicted to increase due to climate change and human activity that cause redistribution of species and bring previously isolated populations into contact. At the same time climate change leads to rapid changes in the environment, requiring populations to adapt rapidly in order to survive. A few empirical cases suggest hybridization can facilitate adaptation despite its potential for incompatibilities and deleterious fitness consequences. Here we use simulations and Fisher's Geometric model to evaluate the conditions and time frame of adaptation via hybridization in both diploids and haplodiploids. We find that hybrids adapt faster to new environments compared to parental populations in nearly all simulated scenarios, generating a fitness advantage that can offset intrinsic incompatibilities and last for tens of generations, regardless of whether the population was diploid or haplodiploid. Our results highlight the creative role of hybridization and suggest that hybridization may help contemporary populations adapt to the changing climate. However, adaptation by hybrids may well happen at the cost of reduced biodiversity, if previously isolated lineages collapse into one. (© The Author(s) 2023. Published by Oxford University Press on behalf of The Society for the Study of Evolution (SSE) and European Society for Evolutionary Biology (ESEN).) |
| Databáze: | MEDLINE |
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