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New Phytologist
Article . 2022 . Peer-reviewed
License: CC BY NC ND
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New Phytologist
Article . 2022
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Evolution of plant drought strategies and herbivore tolerance after two decades of climate change

Authors: Robert Rauschkolb; Zixin Li; Sandrine Godefroid; Lara Dixon; Walter Durka; Maria Májeková; Oliver Bossdorf; +2 Authors

Evolution of plant drought strategies and herbivore tolerance after two decades of climate change

Abstract

Summary Ongoing global warming, coupled with increased drought frequencies, together with other biotic drivers may have resulted in complex evolutionary adaptation. The resurrection approach, comparing ancestors raised from stored seeds with their contemporary descendants under common conditions, is a powerful method to test for recent evolution in plant populations. We used 21–26‐yr‐old seeds of four European plant species – Matthiola tricuspidata, Plantago crassifolia, Clinopodium vulgare and Leontodon hispidus – stored in seed banks together with re‐collected seeds from their wild populations. To test for evolutionary changes, we conducted a glasshouse experiment that quantified heritable changes in plant responses to drought and simulated insect herbivory. In three out of the four studied species, we found evidence that descendants had evolved shorter life cycles through faster growth and flowering. Shifts in the osmotic potential and leaf dry matter content indicated that descendants also evolved increased drought tolerance. A comparison of quantitative genetic differentiation (QST) vs neutral molecular differentiation (FST) values, using double digest restriction‐site associated DNA (ddRAD) genotyping data, suggested that directional selection, and therefore adaptive evolution, was underlying some of the observed phenotypic changes. In summary, our study revealed evolutionary changes in plant populations over the last decades that are consistent with adaptation of drought escape and tolerance as well as herbivory avoidance.

Keywords

Climate Change, Plants, Adaptation, Physiological, Biological Evolution, Droughts, Herbivory

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
33
Top 10%
Average
Top 1%
hybrid