The variability of MHC IIB class genes in two congeneric cyprinids and its influence on the composition of metazoan parasite communities
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| Year of publication | 2012 |
| Type | Conference abstract |
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| Description | Our studies in family Cyprinidae are aimed to analyze life processes and the genetic diversity of fish populations. The potential influence on level of perception to parasite infections in relation with diversity and evolution of hosts MHC genes is also tested. The aims of this study were to investigate the composition of metazoan parasite communities in two pure species (the introduced Chondrostoma nasus and native, protected and endemic Parachondrostoma toxostoma) and their respective hybrids. Based on the hypothesis of parasite-mediated selection maintaining MHC polymorphism it could suggest the difference in parasite load between chondrostomes living in allopatric area and those living in hybrid zone. A total of 7 Monogenea, 8 Trematoda, 3 Crustacea, 1 Acantohocephala species and larval stages of Mollusca were determined on Chondrostoma investigated. Monogenea and Trematoda were the most abundant parasite group. Among them, Dactylogyrus and was the most abundant parasite genus. When comparing two allopatric localities, low similarity in the presence of parasite species was observed. Higher similarity in parasite species richness was observed between sympatric localities. |
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