Herbicidal interference: glyphosate drives both the ecology and evolution of plant-herbivore interactions.

Autor: Zhang GM; Department of Ecology and Evolutionary Biology, University of Michigan, 4034 Biological Sciences Building, Ann Arbor, MI, 48109, USA., Baucom RS; Department of Ecology and Evolutionary Biology, University of Michigan, 4034 Biological Sciences Building, Ann Arbor, MI, 48109, USA.
Jazyk: angličtina
Zdroj: The New phytologist [New Phytol] 2025 Jan; Vol. 245 (2), pp. 807-817. Date of Electronic Publication: 2024 Nov 20.
DOI: 10.1111/nph.20238
Abstrakt: The coevolution of plants and their insect herbivores reflects eco-evolutionary dynamics at work - ecological interactions influence adaptive traits, which feed back to shape the broader ecological community. However, novel anthropogenic stressors like herbicide, which are strong selective agents, can disrupt these dynamics. Little is known about how the evolution of herbicide resistance may impact plant-herbivore interactions. We performed a common garden field experiment using Ipomoea purpurea (common morning glory) and the herbicide glyphosate (Roundup) to investigate the ecological effects of herbicide exposure on insect herbivory patterns and assess the potential evolutionary consequences. We find that plants treated with glyphosate experienced higher levels of herbivory and altered chewing herbivory damage patterns. Additionally, we found that glyphosate resistance is positively associated with herbivory resistance, and uncovered positive selection for increased glyphosate resistance, suggesting that selection for increased glyphosate resistance has the potential to lead to increased herbivory resistance. Positive selection for glyphosate resistance, coupled with the detection of genetic variation for this trait, suggests there is potential for glyphosate resistance - and herbivory resistance via hitchhiking - to further evolve. Our results show that herbicides cannot just influence, but potentially drive the eco-evolutionary dynamics of plant-herbivore interactions.
(© 2024 The Author(s). New Phytologist © 2024 New Phytologist Foundation.)
Databáze: MEDLINE
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