Molecular Phylogeny of Congeneric Monogenean Parasites (Dactylogyrus): A Case of Intrahost Speciation

Šimková, Andrea Vetešníková; Morand, Serge; Jobet, Edouard; Gelnar, Milan; Verneau, Olivier

doi:10.1554/03-606

Cited by 40 publications

(82 citation statements)

References 47 publications

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“…Phylogeny of the Dactylogyrus species (Monogenea), with indications of cospeciation and intra-host speciation events, and with the name of fish hosts. Intra-host speciation or duplication events were obtained using host-parasite tangle trees and were tested by bootstrap procedure (see Š imková et al [6] for details). Tree rooting was done using phylogenetic information and taxonomic knowledge on the family Ancerocephalidae [6].…”

Section: Discussionmentioning

confidence: 99%

“…The monogenean genus Dactylogyrus indeed represents a group of fish gill ecto-parasites highly diversified (a high number of species often live on the same cyprinid species) and highly host-specific, which fits the assumption of our model. In addition, parasite duplication is a major mode of speciation in this group [6] and has been proposed as a case of the 'pleiotropic scenario' [24,33] we investigated. Phylogenetic reconstruction indeed showed that speciation event is linked with change of at least one parameter of the parasite niche, i.e.…”

Section: Test Of the 'Aggregation-free' Adaptive Duplication Hypothesismentioning

confidence: 99%

“…On the basis of the phylogenetic study of Š imková et al [6], we separated 20 species of intra-host speciation origin and six species originated from other types of speciation (figure 1). Intra-host speciation or duplication events were depicted using the host-parasite tangle tree representation, and the robustness of the intrahost speciation (duplication events) was tested by bootstrap percentage on randomized parasite and host phylogenies (see Š imková et al [6] for details). We then used the MACROCAIC program [47], derived from CAIC [48] to test our prediction of independence between the aggregation level and speciation of parasites.…”

Section: Test Of the 'Aggregation-free' Adaptive Duplication Hypothesismentioning

confidence: 99%

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Within-host competition and diversification of macro-parasites

Rascalou

Šimková

Morand

et al. 2012

J. R. Soc. Interface.

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Although competitive speciation is more and more regarded as a plausible mechanism for sympatric speciation of non-parasite species, virtually no empirical or theoretical study has considered this evolutionary process to explain intra-host diversification of parasites. We expanded the theory of competitive speciation to parasite species looking at the effect of macro-parasite life history on the conditions for sympatric speciation under the so-called pleiotropic scenario. We included within-host competition in the classical Anderson and May framework assuming that individuals exploit within-host resources according to a quantitative trait. We derived the invasion fitness function of mutants considering different distributions of individuals among hosts. Although the mutant fitness depends on parameters describing the key features of macro-parasite life history, and on the relative distributions of mutant and residents in hosts, the conditions for competitive speciation of macro-parasites are exactly the same as those previously established for free-living species. As an interesting by-product, within-host competitive speciation is expected not to depend on the aggregation level of the parasites. This theoretical pattern is confirmed by comparing the speciation rate of weakly and strongly aggregated monogenean parasites.

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Section: Discussionmentioning

confidence: 99%

Section: Test Of the 'Aggregation-free' Adaptive Duplication Hypothesismentioning

confidence: 99%

Section: Test Of the 'Aggregation-free' Adaptive Duplication Hypothesismentioning

confidence: 99%

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Within-host competition and diversification of macro-parasites

Rascalou

Šimková

Morand

et al. 2012

J. R. Soc. Interface.

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“…Littlewood et al 1999aLittlewood et al , 1999bOlson and Littlewood, 2002). Within the Monogenea, sequences of ribosomal subunits are widely used to infer phylogenetic relationships at the level of families and subfamilies (Š imková et al 2003 ;Plaisance et al 2005) or also to investigate evolutionary associations between parasites and their hosts (Desdevises et al 2002 ;Š imková et al 2004).…”

Section: Discussionmentioning

confidence: 99%

A molecular phylogeny of the Dactylogyridae sensu Kritsky & Boeger (1989) (Monogenea) based on the D1-D3 domains of large subunit rDNA

Šimková

Matějusová

2006

Parasitology

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Phylogenetic analyses based on the partial large subunit rDNA (LSU) sequences of polyonchoinean monogeneans belonging to the Dactylogyridea and Monocotylidea were generated to investigate relationships among various subfamilies of the Dactylogyridae sensu Kritsky & Boeger, 1989. Monophyly of the Dactylogyridae was supported by all analyses performed. Status of the Ancyrocephalidae sensu Bychowsky & Nagibina, 1978 and Ancyrocephalinae sensu Kritsky & Boeger, 1989 was revised based on the present data. All phylogenetic analyses indicated polyphyletic origins of the Ancyrocephalidae and Ancyrocephalinae. Freshwater species of Ancyrocephalinae (Actinocleidus, Ancyrocephalus, Cleidodiscus and Urocleidus) and Ancylodiscoidinae (Thaparocleidus) collected from the fish in European waters were positioned at the base of the Dactylogyridae. The Dactylogyrinae formed a monophyletic group, sister to a clade including the Pseudodactylogyrinae and the tropical and subtropical Ancyrocephalinae. Analyses including only data set on Dactylogyridea were focused on relationships between representatives of the Asian and European Dactylogyrus species. Dactylogyrus species formed a monophyletic group, and the parasite colonization appeared to follow the dispersal history of the Cyprinidae from Asia to Europe. Three lineages of Dactylogyrus species were recognized: the first including species specific to hosts of Asian origin, the second by Dactylogyrus species from Chinese fish hosts, and the third included Dactylogyrus species from European cyprinids and one species from a percid host. The position of D. cryptomeres from Gobio gobio seems to be unresolved.

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“…Attempts have been made to understand the processes leading to speciation of parasites, and as for many taxa, the dominant mode of speciation in most host-parasite systems appears to be allopatric (Hoberg and Klassen, 2002;Huyse and Volckaert, 2005), but sympatric speciation may also occur ŜImková et al, 2004). Allopatric speciation events due to sea-level change and related shifts to habitats have been widely documented for many marine species (see, e.g.…”

Section: Factors That May Confound Elucidation Of Coevolutionary Pattmentioning

confidence: 99%

A Review of Molecular Approaches for Investigating Patterns of Coevolution in Marine Host–Parasite Relationships

Froeschke¹,

Heyden²

2014

Advances in Parasitology

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Molecular Phylogeny of Congeneric Monogenean Parasites (Dactylogyrus): A Case of Intrahost Speciation

Cited by 40 publications

References 47 publications

Within-host competition and diversification of macro-parasites

Within-host competition and diversification of macro-parasites

A molecular phylogeny of the Dactylogyridae sensu Kritsky & Boeger (1989) (Monogenea) based on the D1-D3 domains of large subunit rDNA

A Review of Molecular Approaches for Investigating Patterns of Coevolution in Marine Host–Parasite Relationships

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