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

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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).

Název v anglickém jazyce

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

Popis výsledku anglicky

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).

Druh

O - Ostatní výsledky

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

<a href="/cs/project/GAP505%2F12%2F0375" target="_blank" >GAP505/12/0375: Evolučně-imunitní a ekologické aspekty parazitace u hybridních a polyploidních kaprovitých ryb</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů