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Title: | Trait evolution during a rapid global weed invasion despite little genetic differentiation | Authors: | Irimia, Ramona E. Torres, Daniel Montesinos Chaturvedi, Anurag Sanders, Ian Hierro, Jose L. Sotes, Gastón J. Cavieres, Lohengrin A. Eren, Özkan Lortie, Christopher J French, Kristine Brennan, Adrian Christopher |
Keywords: | biogeography; divergent selection; invasive alien species; PST–FST comparison; reproductive strategy; single-nucleotide polymorphisms; yellow starthistle | Issue Date: | May-2023 | Publisher: | Wiley-Blackwell | Project: | info:eu-repo/grantAgreement/UID/BIA/04004/2013 PTDC/BIA-PLA/0763/2014 SFRH/BD/110987/2015 |
Serial title, monograph or event: | Evolutionary Applications | Volume: | 16 | Issue: | 5 | Abstract: | Invasive species often possess a great capacity to adapt to novel environments in the form of spatial trait variation, as a result of varying selection regimes, genetic drift, or plasticity. We explored the geographic differentiation in several phenotypic traits related to plant growth, reproduction, and defense in the highly invasive Centaurea solstitialis by measuring neutral genetic differentiation (F ST), and comparing it with phenotypic differentiation (P ST), in a common garden experiment in individuals originating from regions representing the species distribution across five continents. Native plants were more fecund than non-native plants, but the latter displayed considerably larger seed mass. We found indication of divergent selection for these two reproductive traits but little overall genetic differentiation between native and non-native ranges. The native versus invasive P ST-F ST comparisons demonstrated that, in several invasive regions, seed mass had increased proportionally more than the genetic differentiation. Traits displayed different associations with climate variables in different regions. Both capitula numbers and seed mass were associated with winter temperature and precipitation and summer aridity in some regions. Overall, our study suggests that rapid evolution has accompanied invasive success of C. solstitialis and provides new insights into traits and their genetic bases that can contribute to fitness advantages in non-native populations. | URI: | https://hdl.handle.net/10316/113337 | ISSN: | 1752-4571 | DOI: | 10.1111/eva.13548 | Rights: | openAccess |
Appears in Collections: | FCTUC Ciências da Vida - Artigos em Revistas Internacionais I&D CFE - Artigos em Revistas Internacionais |
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Evolutionary Applications - 2023 - Irimia - Trait evolution during a rapid global weed invasion despite little genetic.pdf | 2.62 MB | Adobe PDF | View/Open |
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