Analysis of Dipylidium caninum tapeworms from dogs and cats, or their respective fleas

Initial investigations suggested the existence of two distinct genotypes of Dipylidium caninum from infected cat fleas (Ctenocephalides felis). One genotype was found almost always (> 95%) in fleas collected from, and proglottids shed by, domestic dogs. The other was found almost always (> 95%...

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Main Authors: Beugnet Frédéric, Labuschagne Michel, Vos Christa de, Crafford Dionne, Fourie Josephus
Format: Article
Language:English
Published: EDP Sciences 2018-01-01
Series:Parasite
Subjects:
Online Access:https://doi.org/10.1051/parasite/2018029
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author Beugnet Frédéric
Labuschagne Michel
Vos Christa de
Crafford Dionne
Fourie Josephus
author_facet Beugnet Frédéric
Labuschagne Michel
Vos Christa de
Crafford Dionne
Fourie Josephus
author_sort Beugnet Frédéric
collection DOAJ
description Initial investigations suggested the existence of two distinct genotypes of Dipylidium caninum from infected cat fleas (Ctenocephalides felis). One genotype was found almost always (> 95%) in fleas collected from, and proglottids shed by, domestic dogs. The other was found almost always (> 95%) in fleas collected from, and proglottids shed by, domestic cats. Molecular investigations (Part 1, in this journal) confirmed the presence of two distinct genotypes. Due to the apparent host association observed, these were referred to as the “D. caninum canine genotype” and the “D. caninum feline genotype”. The current article reports on an in vivo experimental infection study assessing the host-parasite interaction for each genotype. Mixed infections with the two genotypes in both dogs and cats were conducted. The specific genotyping of proglottids allowed us to assess the specific prepatent periods, prolificity, and longevity of each genotype in dogs versus cats. The possible hybridisation was also studied through molecular evaluation of the proglottids expelled by infected dogs and cats. Results demonstrate a clear distinct host interaction. The canine D. caninum genotype occurred at a higher frequency in dogs, with a shorter prepatent period and a longer lifespan; and the feline genotype occurred at a higher frequency in cats, with a shorter prepatent period and a longer lifespan. The absence of any hybrids in the mixed infections of both dogs and cats confirm the hypothesis of two distinct genotypes, suggesting the possibility of two distinct species within Dipylidium caninum.
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spelling doaj.art-0f0d8f06b96c4858ab83afdb2f2526fa2023-11-02T10:57:36ZengEDP SciencesParasite1776-10422018-01-01253110.1051/parasite/2018029parasite180005Analysis of Dipylidium caninum tapeworms from dogs and cats, or their respective fleasBeugnet FrédéricLabuschagne MichelVos Christa deCrafford DionneFourie JosephusInitial investigations suggested the existence of two distinct genotypes of Dipylidium caninum from infected cat fleas (Ctenocephalides felis). One genotype was found almost always (> 95%) in fleas collected from, and proglottids shed by, domestic dogs. The other was found almost always (> 95%) in fleas collected from, and proglottids shed by, domestic cats. Molecular investigations (Part 1, in this journal) confirmed the presence of two distinct genotypes. Due to the apparent host association observed, these were referred to as the “D. caninum canine genotype” and the “D. caninum feline genotype”. The current article reports on an in vivo experimental infection study assessing the host-parasite interaction for each genotype. Mixed infections with the two genotypes in both dogs and cats were conducted. The specific genotyping of proglottids allowed us to assess the specific prepatent periods, prolificity, and longevity of each genotype in dogs versus cats. The possible hybridisation was also studied through molecular evaluation of the proglottids expelled by infected dogs and cats. Results demonstrate a clear distinct host interaction. The canine D. caninum genotype occurred at a higher frequency in dogs, with a shorter prepatent period and a longer lifespan; and the feline genotype occurred at a higher frequency in cats, with a shorter prepatent period and a longer lifespan. The absence of any hybrids in the mixed infections of both dogs and cats confirm the hypothesis of two distinct genotypes, suggesting the possibility of two distinct species within Dipylidium caninum.https://doi.org/10.1051/parasite/2018029Dipylidium caninumCtenocephalides felisdogscatsgenotypeshost association
spellingShingle Beugnet Frédéric
Labuschagne Michel
Vos Christa de
Crafford Dionne
Fourie Josephus
Analysis of Dipylidium caninum tapeworms from dogs and cats, or their respective fleas
Parasite
Dipylidium caninum
Ctenocephalides felis
dogs
cats
genotypes
host association
title Analysis of Dipylidium caninum tapeworms from dogs and cats, or their respective fleas
title_full Analysis of Dipylidium caninum tapeworms from dogs and cats, or their respective fleas
title_fullStr Analysis of Dipylidium caninum tapeworms from dogs and cats, or their respective fleas
title_full_unstemmed Analysis of Dipylidium caninum tapeworms from dogs and cats, or their respective fleas
title_short Analysis of Dipylidium caninum tapeworms from dogs and cats, or their respective fleas
title_sort analysis of dipylidium caninum tapeworms from dogs and cats or their respective fleas
topic Dipylidium caninum
Ctenocephalides felis
dogs
cats
genotypes
host association
url https://doi.org/10.1051/parasite/2018029
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