Adapted dandelions increase seed dispersal potential when they are attacked by root herbivores
Adapted dandelions increase seed dispersal potential when they are attacked by root herbivores
Abstract Plants allow their offspring to escape unfavourable local conditions through seed dispersal. Whether plants use this strategy to escape herbivores is not well understood. Here, we explore how different Taraxacum officinale populations modify seed dispersal in response to root herbivore attack by Melolontha melolontha in the field. Root herbivore attack increases seed dispersal potential through a reduction in seed weight in populations that have evolved under high root herbivore pressure, but not in populations that have evolved under low pressure. This increase in dispersal potential is associated with reduced germination, suggesting that adapted plants trade dispersal for establishment. Analysis of vegetative growth parameters suggests that increased dispersal is not the result of stress flowering. These results suggest that root herbivory selects for genotypes that increase their dispersal ability in response to herbivore attack.
Huber Meret、Poelman Erik H.、Erb Matthias、Raaijmakers Ciska E.、Bont Zoe、Robert Christelle A. M.、Pfander Marc
Institute of Plant Biology and Biotechnology, University of M¨1nsterLaboratory of Entomology, Wageningen UniversityInstitute of Plant Sciences, University of BernDepartment of Terrestrial Ecology, Netherlands Institute of EcologyInstitute of Plant Sciences, University of BernInstitute of Plant Sciences, University of BernInstitute of Plant Sciences, University of Bern
环境生物学植物学生物科学现状、生物科学发展
seed dispersalroot herbivoryadaptationnatural selectionfitness costmaternal effectlong distance dispersalTaraxacum officinaleMelolontha melolontha
Huber Meret,Poelman Erik H.,Erb Matthias,Raaijmakers Ciska E.,Bont Zoe,Robert Christelle A. M.,Pfander Marc.Adapted dandelions increase seed dispersal potential when they are attacked by root herbivores[EB/OL].(2025-03-28)[2025-04-24].https://www.biorxiv.org/content/10.1101/551630.点此复制
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