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Variation in insect herbivore communities on individual plants reveals phylogenetic signal in uncertainty of attack in Brassicaceae

View ORCID ProfileDaan Mertens, View ORCID ProfileKlaas Bouwmeester, Erik H. Poelman
doi: https://doi.org/10.1101/2020.12.06.413724
Daan Mertens
1Laboratory of Entomology, Wageningen University and Research, P.O. Box 16, 6700 AA, Wageningen, The Netherlands
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  • For correspondence: Daan.Mertens@wur.nl
Klaas Bouwmeester
2Biosystematics Group, Wageningen University and Research, P.O. Box 16, 6700 AA, Wageningen, The Netherlands
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Erik H. Poelman
1Laboratory of Entomology, Wageningen University and Research, P.O. Box 16, 6700 AA, Wageningen, The Netherlands
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Abstract

As a result of co-evolution between plants and herbivores, related plants often interact with similar communities of herbivores. On individual plants, typically only a subset of interactions is realized. The stochasticity of realized interactions leads to uncertainty of attack on individual plants and is likely to determine adaptiveness of plant defence strategies. Here, we show that across 12 plant species in two phylogenetic lineages of the Brassicaceae, variation in realized herbivore communities reveals a phylogenetic signal in the uncertainty of attack on individual plants. Individual plants of Brassicaceae Lineage II were attacked by a larger number of herbivore species from a larger species pool, resulting in a higher uncertainty of realized antagonistic interactions compared to plants in Lineage I. We argue that uncertainty of attack in terms of realized interactions on individual plants is ecologically relevant and must therefore be considered in the evolution of plant defences.

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  • Email: | Klaas.Bouwmeester{at}wur.nl | Erik.Poelman{at}wur.nl

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY 4.0 International license.
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Posted December 07, 2020.
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Variation in insect herbivore communities on individual plants reveals phylogenetic signal in uncertainty of attack in Brassicaceae
Daan Mertens, Klaas Bouwmeester, Erik H. Poelman
bioRxiv 2020.12.06.413724; doi: https://doi.org/10.1101/2020.12.06.413724
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Variation in insect herbivore communities on individual plants reveals phylogenetic signal in uncertainty of attack in Brassicaceae
Daan Mertens, Klaas Bouwmeester, Erik H. Poelman
bioRxiv 2020.12.06.413724; doi: https://doi.org/10.1101/2020.12.06.413724

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