Universidad Peruana Cayetano Heredia

Symbiont-conferred immunity interacts with effects of parasitoid genotype and intraguild predation to affect aphid immunity in a clone-specific fashion

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dc.contributor.author Purkiss, Samuel Alexander
dc.contributor.author Khudr, Mouhammad Shadi
dc.contributor.author Aguinaga Vargas, Oscar Enrique
dc.contributor.author Hager, Reinmar
dc.date.accessioned 2022-04-26T17:26:49Z
dc.date.available 2022-04-26T17:26:49Z
dc.date.issued 2022
dc.identifier.uri https://hdl.handle.net/20.500.12866/11601
dc.description.abstract Background: Host-parasite interactions represent complex co-evolving systems in which genetic and associated phenotypic variation within a species can significantly affect selective pressures on traits, such as host immunity, in the other. While often modelled as a two-species interaction between host and parasite, some systems are more complex due to effects of host enemies, intraguild predation, and endosymbionts, all of which affect host immunity. However, it remains unclear how these factors, combined with genetic variation in the host and the parasitoid, affect host immunity. We address this question in an important agricultural pest system, the pea aphid Acyrthosiphon pisum, which shows significant intraspecific variability in immunity to the parasitoid wasp Aphidius ervi. In a complex experiment, we use a quantitative genetic design in the parasitoid, two ecologically different aphid lineages and the aphid lion Chrysoperla carnea as an intraguild predator to unravel the complex interdependencies. Results: We demonstrate that aphid immunity as a key trait of this complex host-parasite system is affected by intraspecific genetic variation in the parasitoid and the aphid, the interaction of intraspecific genetic variation with intraguild predation, and differences in defensive endosymbionts between aphid lineages. Further, aphid lineages differ in their altruistic behaviour whereby infested aphids move away from the clonal colony to facilitate predation. Conclusions: Our findings provide new insights into the influence of endosymbiosis and genetic variability in an important host-parasitoid system which is influenced by natural enemies of the parasitoid and the aphid, including its endosymbiont communities. We show that endosymbiosis can mediate or influence the evolutionary arms race between aphids and their natural enemies. The outcome of these complex interactions between species has significant implications for understanding the evolution of multitrophic systems, including eco-agricultural settings. en_US
dc.language.iso eng
dc.publisher BioMed Central
dc.relation.ispartofseries BMC Ecology
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject Intraspecific genetic variation effects en_US
dc.subject Inter-species indirect genetic effects en_US
dc.subject Intraguild predation en_US
dc.subject Indirect ecological effects en_US
dc.subject Pea aphid en_US
dc.subject Endosymbiont en_US
dc.subject Host–parasite system en_US
dc.title Symbiont-conferred immunity interacts with effects of parasitoid genotype and intraguild predation to affect aphid immunity in a clone-specific fashion en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.1186/s12862-022-01991-1
dc.relation.issn 1472-6785


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