The variability of MHC genes and parasite selection in hybrids of common bream (Abramis brama) and roach (Rutilus rutilus)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F15%3A00081063" target="_blank" >RIV/00216224:14310/15:00081063 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
The variability of MHC genes and parasite selection in hybrids of common bream (Abramis brama) and roach (Rutilus rutilus)
Original language description
Hybridization is a common phenomenon reported in cyprinid fish. Depending on the extent of evolutionary divergence among hybridizing parental taxa, two hypotheses have been proposed: (1) the hybrids suffer from a breakdown of co-adapted genes (leading todecreasing the efficiency of the defence mechanisms linked to high parasite susceptibility) or (2) hybrids exhibit high vigour due of the heterosis effect which confers advantages to increased genetic diversity (this mechanism explain the success of hybrids). In our study, we focused on the hybridization of two non-congeneric cyprinid fish species ? roach (Rutilus rutilus) and common bream (Abramis brama). Both fish species exhibit the different metazoan parasite species, especially host-specific ectoparasitic monogeneans. Hybrids were determined on the basis of morphological traits and using molecular markers (cyt b and several microsatellite loci).
Czech name
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Czech description
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Project
<a href="/en/project/GAP505%2F12%2F0375" target="_blank" >GAP505/12/0375: Evolutionary-immunological and ecological aspects of parasitism in hybrid and polyploid cyprinid fish</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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