Phenotypic divergence during the invasion of phyla canescens in Australia and France: evidence for selection-driven evolution
Article
Article Title | Phenotypic divergence during the invasion of phyla canescens in Australia and France: evidence for selection-driven evolution |
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ERA Journal ID | 3238 |
Article Category | Article |
Authors | Xu, Cheng-Yuan (Author), Julien, Mic H. (Author), Fatemi, Mohammed (Author), Girod, Christophe (Author), van Klinken, Rieks D. (Author), Gross, Caroline L. (Author) and Novak, Stephen J. (Author) |
Journal Title | Ecology Letters |
Journal Citation | 13 (1), pp. 32-44 |
Number of Pages | 13 |
Year | 2010 |
Place of Publication | Oxford, United Kingdom |
ISSN | 1461-023X |
1461-0248 | |
Digital Object Identifier (DOI) | https://doi.org/10.1111/j.1461-0248.2009.01395.x |
Abstract | Rapid adaptive evolution has been advocated as a mechanism that promotes invasion. Demonstrating adaptive evolution in invasive species requires rigorous analysis of phenotypic shifts driven by selection. Here, we document selection-driven evolution of Phyla canescens, an Argentine weed, in two invaded regions (Australia and France). Invasive populations possessed similar or higher diversity than native populations, and displayed mixed lineages from different sources, suggesting that genetic bottlenecks in both countries might have been alleviated by multiple introductions. Compared to native populations, Australian populations displayed more investment in sexual reproduction, whereas French populations possessed enhanced vegetative reproduction and growth. We partitioned evolutionary forces (selection vs. stochastic events) using two independent methods. Results of both analyses suggest that the pattern of molecular and phenotypic variability among regions was consistent with selection-driven evolution, rather than stochastic events. Our findings indicate that selection has shaped the evolution of P. canescens in two different invaded regions. |
Keywords | biological invasions; differentiation; multiple introductions; phenotypic evolution; selection; sexual reproduction; stochastic events; vegetative reproduction |
ANZSRC Field of Research 2020 | 310403. Biological adaptation |
410202. Biosecurity science and invasive species ecology | |
310804. Plant developmental and reproductive biology | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia |
CSIRO European Laboratory, France | |
University of New England | |
Museum of Natural History, France | |
Boise State University, United States |
https://research.usq.edu.au/item/9zw38/phenotypic-divergence-during-the-invasion-of-phyla-canescens-in-australia-and-france-evidence-for-selection-driven-evolution
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