Monogènes Dactylogyridae parasites de Cyprinidae du genreBarbus d'Afrique du Nord

Gharbi, Salwa El; Birgi, E.; Lambert, Alain

doi:10.1007/bf02185667

Cited by 26 publications

(53 citation statements)

References 2 publications

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“…Genus-level consequences of the new multidisciplinary studies: the revalidation of Labeobarbus In line with Boulenger (1919), Pellegrin (1939), Berrebi (1981), and Berrebi et al (1990), and based on isoenzyme as well as monogenean Dactylogyridae parasite data for some Moroccan species, El Gharbi, Lambert & Berrebi (1993) and El Gharbi, Birgi & Lambert (1994) re-used Labeobarbus as a subgenus of Barbus. This decision was also followed by Berrebi (1995: fig.…”

Section: The Period Of Skepsismentioning

confidence: 83%

The African hexaploid Torini (Cypriniformes: Cyprinidae): review of a tumultuous history

et al. 2016

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A review of the tumultuous history of the alpha-and genus-level taxonomy of the hexaploid African Torini, i.e. Labeobarbus s.l. (synonym: Varicorhinus), as well as of the closely related monospecific genera Acapoeta and Sanagia, is provided. The main purpose of the present paper is to provide a continental framework for multidisciplinary research on this megadiverse vertebrate group. Based on the inspection of almost all relevant type specimens, a complete and fully annotated checklist of all valid species and junior synonyms is provided for each of the four nominal genera. It comprises ∼275 nominal taxa, 125 of which are valid African Labeobarbus spp. and three of which are formally named hybrid phenotypes. Particular attention is drawn to the diversity and taxon-specific distribution of mouth phenotypes, which previously served as generic identification characters, i.e. 'rubberlips' with strongly developed, sometimes hypertrophied lips and a mental lobe, and 'chiselmouths' (former Varicorhinus spp.) with a cornified sharp cutting edge on their lower jaw. Interestingly, many species are polymorphic and include a large array of intermediate mouth phenotypes. The recurrent occurrence of similar mouth phenotype diversity within, but also far beyond, the borders of Labeobarbus s.l. is highlighted, raising numerous evolutionary questions.

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Section: The Period Of Skepsismentioning

confidence: 83%

The African hexaploid Torini (Cypriniformes: Cyprinidae): review of a tumultuous history

et al. 2016

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“…Host specificity for a single fish species or genus has been reported for this genus (Gusev 1985;El Gharbi et al 1994;Lambert and El Gharbi 1995). Dactylogyrus spp.…”

Section: Parasite and Host Samplingmentioning

confidence: 97%

Specificity and Specialization of Congeneric Monogeneans Parasitizing Cyprinid Fish

Šimková

Verneau

Gelnar

et al. 2006

Evol

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Patterns and likely processes connected with evolution of host specificity in congeneric monogeneans parasitizing fish species of the Cyprinidae were investigated. A total of 51 Dactylogyrus species was included. We investigated (1) the link between host specificity and parasite phylogeny; (2) the morphometric correlates of host specificity, parasite body size, and variables of attachment organs important for host specificity; (3) the evolution of morphological adaptation, that is, attachment organ; (4) the determinants of host specificity following the hypothesis of specialization on more predictable resources considering maximal body size, maximal longevity, and abundance as measures of host predictability; and (5) the potential link between host specificity and parasite diversification. Host specificity, expressed as an index of host specificity including phylogenetic and taxonomic relatedness of hosts, was partially associated with parasite phylogeny, but no significant contribution of host phylogeny was found. The mapping of host specificity into the phylogenetic tree suggests that being specialist is not a derived condition for Dactylogyrus species. The different morphometric traits of the attachment apparatus seem to be selected in connection with specialization of specialist parasites and other traits favored as adaptations in generalist parasites. Parasites widespread on several host species reach higher abundance within hosts, which supports the hypothesis of ecological specialization. When separating specialists and generalists, we confirmed the hypothesis of specialization on a predictable resource; that is, specialists with larger anchors tend to live on fish species with larger body size and greater longevity, which could be also interpreted as a mechanism for optimizing morphological adaptation. We demonstrated that ecology of host species could also be recognized as an important determinant of host specificity. The mapping of morphological characters of the attachment organ onto the parasite phylogenetic tree reveals that morphological evolution of the attachment organ is connected with host specificity in the context of fish relatedness, especially at the level of host subfamilies. Finally, we did not find that host specificity leads to parasite diversification in congeneric monogeneans.

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“…In this genus, a high number of congeneric species coexisting on the same host species has been reported (Rohde 1989;Kennedy and Bush 1992;Š imková et al 2000, and several studies have been conducted on host specificity within the Cyprinidae (Guégan and Agnèse 1991;Guégan and Lambert 1991;El Gharbi et al 1994;Lambert and El Gharbi 1995;Š imková et al 2001). The coexistence of Dactylogyrus species on the same host was suggested to be facilitated by niche distances and differing morphology of reproductive apparatus Jarkovský et al 2004).…”

mentioning

confidence: 91%

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

Šimková

Morand

Jobet

et al. 2004

Evol

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Monogènes Dactylogyridae parasites de Cyprinidae du genreBarbus d'Afrique du Nord

Cited by 26 publications

References 2 publications

The African hexaploid Torini (Cypriniformes: Cyprinidae): review of a tumultuous history

The African hexaploid Torini (Cypriniformes: Cyprinidae): review of a tumultuous history

Specificity and Specialization of Congeneric Monogeneans Parasitizing Cyprinid Fish

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

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