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Diversification processes between monogenoids (Dactylogyridae) and their marine catfish (Siluriformes: Ariidae) from the Atlantic coast of South America

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Diversification processes between monogenoids (Dactylogyridae) and their marine catfish (Siluriformes: Ariidae) from the Atlantic coast of South America

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dc.contributor.author Soares, G.
dc.contributor.author Adriano, E.
dc.contributor.author Domingues, M.
dc.contributor.author Balbuena, J.A.
dc.date.accessioned 2023-11-15T10:09:21Z
dc.date.available 2023-11-15T10:09:21Z
dc.date.issued 2023
dc.identifier.uri https://hdl.handle.net/10550/91154
dc.description.abstract Due to their high specificity, monogenoids from fish provide an interesting model to study historical associations of hosts and parasites. High agreement between host and parasite phylogeny is often interpreted as evidence of cospeciation. However, cophylogenetic signal may also arise from other, either adaptive or non-adaptive, processes. We applied the recently developed Cophylospace Framework to better understand the evolutionary relationship between monogenoids and marine catfish from the Atlantic coast of South America. The associations between 12 marine catfish and 10 monogenoid species were assessed. Molecular data of host and parasite species were used for phylogenetic reconstruction. We used anchor morphology based on Procrustes coordinates to evaluate whether closely related hosts are associated with morphologically similar parasites. To assess the association between parasite phylogeny and host morphology, we produced a distance matrix based on morphological characters of catfishes. Agreement between phylogenies and between phylogeny and morphology was measured using Procrustes R2 computed with PACo. The parasite phylogeny obtained in this study represents the first complete phylogenetic hypothesis of monogenoids parasitizing ariids from South America. The Cophylospace analysis suggested that phylogenetic and morphological distance of monogenoids contributes similarly to explain the pattern of host-parasite associations, whereas parasite phylogeny is more strongly associated with the morphological traits of the hosts than with host phylogeny. This evidence suggests that cospeciation is not a major force accounting for diversification in the monogenoids studied. Rather host morphological traits seem to be a more important driver, which conforms with evidence from other host‒monogenoid systems.
dc.language.iso eng
dc.relation.ispartof Parasitology, 2023, vol. 150, num. 2, p. 184-194
dc.source Soares, G., Adriano, E., Domingues, M. Balbuena, J.A. (2023). Diversification processes between monogenoids (Dactylogyridae) and their marine catfish (Siluriformes: Ariidae) from the Atlantic coast of South America. Parasitology 150 2 184 194
dc.subject biologia marina
dc.title Diversification processes between monogenoids (Dactylogyridae) and their marine catfish (Siluriformes: Ariidae) from the Atlantic coast of South America
dc.type journal article
dc.date.updated 2023-11-15T10:09:21Z
dc.identifier.doi 10.1017/S0031182022001615
dc.identifier.idgrec 156269
dc.rights.accessRights open access

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