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dc.contributor.authorBadets, Mathieu
dc.contributor.authorDu Preez, Louis
dc.contributor.authorVerneau, Olivier
dc.identifier.citationBadets, M. et al. 2013. Alternative development in polystoma gallieni (platyhelminthes, monogenea) and life cycle evolution. Experimental Parasitology. 135:283-286. []en_US
dc.identifier.issn1090-2449 (Online)
dc.description.abstractConsidering the addition of intermediate transmission steps during life cycle evolution, developmental plasticity, canalization forces and inherited parental effect must be invoked to explain new host colonization. Unfortunately, there is a lack of experimental procedures and relevant models to explore the adaptive value of alternative developmental phenotypes during life cycle evolution. However, within the monogeneans that are characterized by a direct life cycle, an extension of the transmission strategy of amphibian parasites has been reported within species of Polystoma and Metapolystoma (Polyopisthocotylea; Polystomatidae). In this study, we tested whether the infection success of Polystoma gallieni within tadpoles of its specific host, the Stripeless Tree Frog Hyla meridionalis, differs depending on the parental origin of the oncomiracidium. An increase in the infection success of the parasitic larvae when exposed to the same experimental conditions as their parents was expected as an adaptive pattern of non-genetic inherited information. Twice as many parasites were actually recorded from tadpoles infected with oncomiracidia hatching from eggs of the bladder parental phenotype (1.63 ± 0.82 parasites per host) than from tadpoles infected with oncomiracidia hatching from eggs of the branchial parental phenotype (0.83 ± 0.64 parasites per host). Because in natural environments the alternation of the two phenotypes is likely to occur due to the ecology of its host, the differential infection success within young tadpoles could have an adaptive value that favors the parasite transmission over time.en_US
dc.subjectdevelopmental plasticityen_US
dc.subjectparasitic life cyclesen_US
dc.subjectexperimental infestationen_US
dc.titleAlternative development in polystoma gallieni (platyhelminthes, monogenea) and life cycle evolutionen_US
dc.contributor.researchID12308218 - Du Preez, Louis Heyns
dc.contributor.researchID25588427 - Verneau, Olivier

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