10.5061/DRYAD.D3K37
Zhu, Feng
Wageningen University & Research
Broekgaarden, Colette
Wageningen University & Research
Utrecht University
Weldegergis, Berhane T.
Wageningen University & Research
Harvey, Jeffrey A.
Nederlands Instituut voor Ecologie
Vosman, Ben
Wageningen University & Research
Dicke, Marcel
Wageningen University & Research
Poelman, Erik H.
Wageningen University & Research
Data from: Parasitism overrides herbivore identity allowing
hyperparasitoids to locate their parasitoid host by using
herbivore-induced plant volatiles
Dryad
dataset
2015
2015-03-18T14:57:30Z
2015-03-18T14:57:30Z
en
https://doi.org/10.1111/mec.13164
87395546 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Foraging success of predators profoundly depends on reliable and
detectable cues indicating the presence of their often inconspicuous prey.
Carnivorous insects rely on chemical cues to optimize foraging efficiency.
Hyperparasitoids that lay their eggs in the larvae or pupae of parasitic
wasps may find their parasitoid hosts developing in different herbivores.
They can use herbivore-induced plant volatiles (HIPVs) to locate
parasitized caterpillars. Because different herbivore species induce
different HIPV emission from plants, hyperparasitoids may have to deal
with large variation in volatile information that indicates host presence.
In this study, we used an ecogenomics approach to first address whether
parasitized caterpillars of two herbivore species (Pieris rapae and P.
brassicae) induce similar transcriptional and metabolomic responses in
wild Brassica oleracea plants and, second, whether hyperparasitoids
Lysibia nana are able to discriminate between these induced plant
responses to locate their parasitoid host in different herbivores under
both laboratory and field conditions. Our study revealed that both
herbivore identity and parasitism affect plant transcriptional and
metabolic responses to herbivory. We also found that hyperparasitoids are
able to respond to HIPVs released by wild B. oleracea under both
laboratory and field conditions. In addition, we observed stronger
attraction of hyperparasitoids to HIPVs when plants were infested with
parasitized caterpillars. However, hyperparasitoids were equally attracted
to plants infested by either herbivore species. Our results indicate that
parasitism plays a major role in HIPV-mediated plant–hyperparasitoid
interactions. Furthermore, these findings also indicate that plant
trait-mediated indirect interaction networks play important roles in
community-wide species interactions.
Microarray raw dataPlant volatile analysisY-tube bioassayField dataqPCR
raw data