Genotypes and phenotypes in a Wolbachia-ant symbiosis

The fitness effects of overt parasites, and host resistance to them, are well documented. Most symbionts, however, are more covert and their interactions with their hosts are less well understood. Wolbachia, an intracellular symbiont of insects, is particularly interesting because it is thought to b...

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Autori principali: Crystal L. Frost, Rowena Mitchell, Judith Elizabeth Smith, William O.H. Hughes
Natura: Articolo
Lingua:English
Pubblicazione: PeerJ Inc. 2024-07-01
Serie:PeerJ
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Accesso online:https://peerj.com/articles/17781.pdf
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author Crystal L. Frost
Rowena Mitchell
Judith Elizabeth Smith
William O.H. Hughes
author_facet Crystal L. Frost
Rowena Mitchell
Judith Elizabeth Smith
William O.H. Hughes
author_sort Crystal L. Frost
collection DOAJ
description The fitness effects of overt parasites, and host resistance to them, are well documented. Most symbionts, however, are more covert and their interactions with their hosts are less well understood. Wolbachia, an intracellular symbiont of insects, is particularly interesting because it is thought to be unaffected by the host immune response and to have fitness effects mostly focussed on sex ratio manipulation. Here, we use quantitative PCR to investigate whether host genotype affects Wolbachia infection density in the leaf-cutting ant Acromyrmex echinatior, and whether Wolbachia infection density may affect host morphology or caste determination. We found significant differences between host colonies in the density of Wolbachia infections, and also smaller intracolonial differences in infection density between host patrilines. However, the density of Wolbachia infections did not appear to affect the morphology of adult queens or likelihood of ants developing as queens. The results suggest that both host genotype and environment influence the host-Wolbachia relationship, but that Wolbachia infections carry little or no physiological effect on the development of larvae in this system.
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spelling doaj.art-dba14b26333f4835a9c5c2f43f2e1d092024-07-28T15:05:17ZengPeerJ Inc.PeerJ2167-83592024-07-0112e1778110.7717/peerj.17781Genotypes and phenotypes in a Wolbachia-ant symbiosisCrystal L. Frost0Rowena Mitchell1Judith Elizabeth Smith2William O.H. Hughes3School of Biology, University of Leeds, Leeds, United KingdomSchool of Biology, University of Leeds, Leeds, United KingdomSchool of Biology, University of Leeds, Leeds, United KingdomSchool of Biology, University of Leeds, Leeds, United KingdomThe fitness effects of overt parasites, and host resistance to them, are well documented. Most symbionts, however, are more covert and their interactions with their hosts are less well understood. Wolbachia, an intracellular symbiont of insects, is particularly interesting because it is thought to be unaffected by the host immune response and to have fitness effects mostly focussed on sex ratio manipulation. Here, we use quantitative PCR to investigate whether host genotype affects Wolbachia infection density in the leaf-cutting ant Acromyrmex echinatior, and whether Wolbachia infection density may affect host morphology or caste determination. We found significant differences between host colonies in the density of Wolbachia infections, and also smaller intracolonial differences in infection density between host patrilines. However, the density of Wolbachia infections did not appear to affect the morphology of adult queens or likelihood of ants developing as queens. The results suggest that both host genotype and environment influence the host-Wolbachia relationship, but that Wolbachia infections carry little or no physiological effect on the development of larvae in this system.https://peerj.com/articles/17781.pdfResistanceDevelopmentVirulenceCaste determinationSocial insectEndosymbiosis
spellingShingle Crystal L. Frost
Rowena Mitchell
Judith Elizabeth Smith
William O.H. Hughes
Genotypes and phenotypes in a Wolbachia-ant symbiosis
PeerJ
Resistance
Development
Virulence
Caste determination
Social insect
Endosymbiosis
title Genotypes and phenotypes in a Wolbachia-ant symbiosis
title_full Genotypes and phenotypes in a Wolbachia-ant symbiosis
title_fullStr Genotypes and phenotypes in a Wolbachia-ant symbiosis
title_full_unstemmed Genotypes and phenotypes in a Wolbachia-ant symbiosis
title_short Genotypes and phenotypes in a Wolbachia-ant symbiosis
title_sort genotypes and phenotypes in a wolbachia ant symbiosis
topic Resistance
Development
Virulence
Caste determination
Social insect
Endosymbiosis
url https://peerj.com/articles/17781.pdf
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