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The effect of squash domestication on a belowground tritrophic interaction
The domestication of plants has commonly resulted in the loss of plant defense metabolites, with important consequences for the plants' interactions with herbivores and their natural enemies. Squash domestication started 10′000 years ago and has led to the loss of cucurbitacins, which are highl...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10168047/ https://www.ncbi.nlm.nih.gov/pubmed/37283693 http://dx.doi.org/10.1002/pei3.10071 |
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author | Jaccard, Charlyne Marguier, Nicolas T. Arce, Carla C. M. Bruno, Pamela Glauser, Gaëtan Turlings, Ted C. J. Benrey, Betty |
author_facet | Jaccard, Charlyne Marguier, Nicolas T. Arce, Carla C. M. Bruno, Pamela Glauser, Gaëtan Turlings, Ted C. J. Benrey, Betty |
author_sort | Jaccard, Charlyne |
collection | PubMed |
description | The domestication of plants has commonly resulted in the loss of plant defense metabolites, with important consequences for the plants' interactions with herbivores and their natural enemies. Squash domestication started 10′000 years ago and has led to the loss of cucurbitacins, which are highly toxic triterpenes. The banded cucumber beetle (Diabrotica balteata), a generalist herbivore, is adapted to feed on plants from the Cucurbitaceae and is known to sequester cucurbitacins, supposedly for its own defense. However, the evidence for this is inconclusive. In this study we tested the impact of squash domestication on the chemical protection of D. balteata larvae against a predatory rove beetle (Dalotia coriaria). We found that cucurbitacins do not defend the larvae against this common soil dwelling predator. In fact, D. balteata larvae were less attacked when they fed on cucurbitacin‐free roots of domesticated varieties compared to high‐cucurbitacin roots of wild plants. This study appears to be the first to look at the consequences of plant domestication on belowground tritrophic interactions. Our results challenge the generalized assumption that sequestered cucurbitacins protect this herbivore against natural enemies, and instead reveals an opposite effect that may be due to a tradeoff between coping with cucurbitacins and avoiding predation. |
format | Online Article Text |
id | pubmed-10168047 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-101680472023-06-06 The effect of squash domestication on a belowground tritrophic interaction Jaccard, Charlyne Marguier, Nicolas T. Arce, Carla C. M. Bruno, Pamela Glauser, Gaëtan Turlings, Ted C. J. Benrey, Betty Plant Environ Interact Research Articles The domestication of plants has commonly resulted in the loss of plant defense metabolites, with important consequences for the plants' interactions with herbivores and their natural enemies. Squash domestication started 10′000 years ago and has led to the loss of cucurbitacins, which are highly toxic triterpenes. The banded cucumber beetle (Diabrotica balteata), a generalist herbivore, is adapted to feed on plants from the Cucurbitaceae and is known to sequester cucurbitacins, supposedly for its own defense. However, the evidence for this is inconclusive. In this study we tested the impact of squash domestication on the chemical protection of D. balteata larvae against a predatory rove beetle (Dalotia coriaria). We found that cucurbitacins do not defend the larvae against this common soil dwelling predator. In fact, D. balteata larvae were less attacked when they fed on cucurbitacin‐free roots of domesticated varieties compared to high‐cucurbitacin roots of wild plants. This study appears to be the first to look at the consequences of plant domestication on belowground tritrophic interactions. Our results challenge the generalized assumption that sequestered cucurbitacins protect this herbivore against natural enemies, and instead reveals an opposite effect that may be due to a tradeoff between coping with cucurbitacins and avoiding predation. John Wiley and Sons Inc. 2022-03-04 /pmc/articles/PMC10168047/ /pubmed/37283693 http://dx.doi.org/10.1002/pei3.10071 Text en © 2022 The Authors. Plant‐Environment Interactions published by New Phytologist Foundation and John Wiley & Sons Ltd. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Articles Jaccard, Charlyne Marguier, Nicolas T. Arce, Carla C. M. Bruno, Pamela Glauser, Gaëtan Turlings, Ted C. J. Benrey, Betty The effect of squash domestication on a belowground tritrophic interaction |
title | The effect of squash domestication on a belowground tritrophic interaction |
title_full | The effect of squash domestication on a belowground tritrophic interaction |
title_fullStr | The effect of squash domestication on a belowground tritrophic interaction |
title_full_unstemmed | The effect of squash domestication on a belowground tritrophic interaction |
title_short | The effect of squash domestication on a belowground tritrophic interaction |
title_sort | effect of squash domestication on a belowground tritrophic interaction |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10168047/ https://www.ncbi.nlm.nih.gov/pubmed/37283693 http://dx.doi.org/10.1002/pei3.10071 |
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