Climate warming can reduce biocontrol efficacy and promote plant invasion due to both genetic and transient metabolomic changes.

Sun, Yan; Züst, Tobias; Silvestro, Daniele; Erb, Matthias; Bossdorf, Oliver; Mateo, Pierre; Robert, Christelle; Müller-Schärer, Heinz (2022). Climate warming can reduce biocontrol efficacy and promote plant invasion due to both genetic and transient metabolomic changes. Ecology Letters, 25(6), pp. 1387-1400. Wiley-Blackwell Publishing 10.1111/ele.14000

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Climate change may affect plant-herbivore interactions and their associated ecosystem functions. In an experimental evolution approach, we subjected replicated populations of the invasive Ambrosia artemisiifolia to a combination of simulated warming and herbivory by a potential biocontrol beetle. We tracked genomic and metabolomic changes across generations in field populations and assessed plant offspring phenotypes in a common environment. Using an integrated Bayesian model, we show that increased offspring biomass in response to warming arose through changes in the genetic composition of populations. In contrast, increased resistance to herbivory arose through a shift in plant metabolomic profiles without genetic changes, most likely by transgenerational induction of defences. Importantly, while increased resistance was costly at ambient temperatures, warming removed this constraint and favoured both vigorous and better defended plants under biocontrol. Climate warming may thus decrease biocontrol efficiency and promote Ambrosia invasion, with potentially serious economic and health consequences.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Biotic Interactions
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS)

UniBE Contributor:

Züst, Tobias, Erb, Matthias, Mateo, Pierre, Robert, Christelle Aurélie Maud

Subjects:

500 Science > 580 Plants (Botany)

ISSN:

1461-023X

Publisher:

Wiley-Blackwell Publishing

Language:

English

Submitter:

Pubmed Import

Date Deposited:

07 Apr 2022 10:12

Last Modified:

05 Dec 2022 16:18

Publisher DOI:

10.1111/ele.14000

PubMed ID:

35384215

Uncontrolled Keywords:

Ambrosia artemisiifolia Ophraella communa biological control biological invasions climate change common ragweed experimental evolution genomics hierarchical Bayesian model metabolomics

BORIS DOI:

10.48350/169092

URI:

https://boris.unibe.ch/id/eprint/169092

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