Trait evolution during a rapid global weed invasion despite little genetic differentiation.

Details

Serval ID
serval:BIB_E4E121E57659
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Trait evolution during a rapid global weed invasion despite little genetic differentiation.
Journal
Evolutionary applications
Author(s)
Irimia R.E., Montesinos D., Chaturvedi A., Sanders I., Hierro J.L., Sotes G., Cavieres L.A., Eren Ö., Lortie C.J., French K., Brennan A.C.
ISSN
1752-4571 (Print)
ISSN-L
1752-4571
Publication state
Published
Issued date
05/2023
Peer-reviewed
Oui
Volume
16
Number
5
Pages
997-1011
Language
english
Notes
Publication types: Journal Article
Publication Status: epublish
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 <sub>ST</sub> ), and comparing it with phenotypic differentiation (P <sub>ST</sub> ), 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 <sub>ST</sub> -F <sub>ST</sub> 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.
Keywords
PST–FST comparison, biogeography, divergent selection, invasive alien species, reproductive strategy, single‐nucleotide polymorphisms, yellow starthistle
Pubmed
Web of science
Open Access
Yes
Create date
30/05/2023 10:19
Last modification date
09/12/2023 7:03
Usage data