Evolution under changing climates: climatic niche stasis despite rapid evolution in a non-native plant.

Details

Serval ID
serval:BIB_FB048ECC1948
Type
Article: article from journal or magazin.
Collection
Publications
Title
Evolution under changing climates: climatic niche stasis despite rapid evolution in a non-native plant.
Journal
Proceedings of the Royal Society B: Biological Sciences
Author(s)
Alexander J.M.
ISSN
1471-2954 (Electronic)
ISSN-L
0962-8452
Publication state
Published
Issued date
2013
Peer-reviewed
Oui
Volume
280
Number
1767
Pages
20131446
Language
english
Abstract
A topic of great current interest is the capacity of populations to adapt genetically to rapidly changing climates, for example by evolving the timing of life-history events, but this is challenging to address experimentally. I use a plant invasion as a model system to tackle this question by combining molecular markers, a common garden experiment and climatic niche modelling. This approach reveals that non-native Lactuca serriola originates primarily from Europe, a climatic subset of its native range, with low rates of admixture from Asia. It has rapidly refilled its climatic niche in the new range, associated with the evolution of flowering phenology to produce clines along climate gradients that mirror those across the native range. Consequently, some non-native plants have evolved development times and grow under climates more extreme than those found in Europe, but not among populations from the native range as a whole. This suggests that many plant populations can adapt rapidly to changed climatic conditions that are already within the climatic niche space occupied by the species elsewhere in its range, but that evolution to conditions outside of this range is more difficult. These findings can also help to explain the prevalence of niche conservatism among non-native species.
Keywords
Biological Evolution, Climate Change, Ecosystem, Flowers/growth & development, Introduced Species, Lettuce/genetics, Lettuce/growth & development, Microsatellite Repeats, Phylogeography, Polymerase Chain Reaction, Seasons
Pubmed
Web of science
Open Access
Yes
Create date
01/09/2016 12:31
Last modification date
20/08/2019 16:26
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