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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Phylogenetic relationships among monogenean gill parasites (Dactylogyridea, Ancyrocephalidae) infesting tilapiine hosts (Cichlidae): Systematic and evolutionary implications
Molecular Phylogenetics and Evolution, Volume 38, No. 1, Year 2006
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Description
We studied the systematics of 14 species of monogenean (Ancyrocephalidae) gill parasites from West African tilapiine hosts (Cichlidae) using both morphological and genetic data. With these tools, we were able to: (i) confirm the validity of the previously described morphological parasite species and of the genus Scutogyrus; (ii) propose that some stenoxenous species (i.e., parasite species with more than one host) may be composed of sister species (e.g., Cichlidogyrus tilapiae); (iii) state that the use of the morphology of the haptoral sclerites is more suitable to infer phylogenetic relationships than the morphology of the genitalia (which seems to be more useful to resolve species-level identifications, presumably because of its faster rate of change). These results imply that: (i) the specificity of these monogenean parasites is greater than initially supposed (what were thought to be stenoxenous species may be assemblages of oïoxenous sister species); (ii) related species groups (i.e., "tilapiae," "halli," and "tiberianus") have to be, as genus Scutogyrus, validated within the 54 ancyrocephalid species described from 18 species of tilapiine hosts in West Africa, (iii) the group "tilapiae," due to its morphology and host range, have to be considered as being the most primitive; (iv) the occurrence of lateral transfers and parallel speciation processes are necessary to describe the repartition of the newly described parasite groups on the three host genera studied (Tilapia, Oreochromis, and Sarotherodon). © 2005 Elsevier Inc. All rights reserved.
Authors & Co-Authors
Pouyaud, Laurent
France, Montpellier
Université de Montpellier
France, Montpellier
Ird Centre de Montpellier
Desmarais, Érick
France, Montpellier
Université de Montpellier
Pariselle, Antoine
France, Montpellier
Université de Montpellier
France, Marseille
Ird Institut de Recherche Pour le Developpement
Statistics
Citations: 93
Authors: 3
Affiliations: 4
Identifiers
Doi:
10.1016/j.ympev.2005.08.013
ISSN:
10959513
Research Areas
Genetics And Genomics
Study Locations
Multi-countries