MHC genes and parasitism in Carassius gibelio, a diploid-triploid fish species with dual reproduction strategies

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F13%3A00066956" target="_blank" >RIV/00216224:14310/13:00066956 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68081766:_____/13:00393165

Výsledek na webu

<a href="http://dx.doi.org/10.1186/1471-2148-13-122" target="_blank" >http://dx.doi.org/10.1186/1471-2148-13-122</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1186/1471-2148-13-122" target="_blank" >10.1186/1471-2148-13-122</a>

Jazyk výsledku

angličtina

Název v původním jazyce

MHC genes and parasitism in Carassius gibelio, a diploid-triploid fish species with dual reproduction strategies

Popis výsledku v původním jazyce

Background The gibel carp is a fish species with dual reproduction modes, gynogenesis and sexual reproduction, coexisting in mixed diploid-polyploid populations. Following the Red Queen (RQ) assumption, asexual organisms are, due to their low genetic diversity, targets for parasite adaptation. Because MHC polymorphism is maintained by selection from parasites and sexual selection, MHC genes are considered as a suitable candidate for testing the RQ hypothesis. In this study, we investigated MHC variability and the selection pressure acting on MHC genes in sexual diploids and asexual triploids. In addition, we tested whether the asexual form of gibel carp suffers from higher parasite loads than the sexual form. Results At the population level, genotype and allelic diversity of MHC were reduced in gynogenetic triploids when compared to sexual diploids. Different patterns in positively selected sites (PSS) between gynogens and sexual gibel carp were also found.

Název v anglickém jazyce

MHC genes and parasitism in Carassius gibelio, a diploid-triploid fish species with dual reproduction strategies

Popis výsledku anglicky

Background The gibel carp is a fish species with dual reproduction modes, gynogenesis and sexual reproduction, coexisting in mixed diploid-polyploid populations. Following the Red Queen (RQ) assumption, asexual organisms are, due to their low genetic diversity, targets for parasite adaptation. Because MHC polymorphism is maintained by selection from parasites and sexual selection, MHC genes are considered as a suitable candidate for testing the RQ hypothesis. In this study, we investigated MHC variability and the selection pressure acting on MHC genes in sexual diploids and asexual triploids. In addition, we tested whether the asexual form of gibel carp suffers from higher parasite loads than the sexual form. Results At the population level, genotype and allelic diversity of MHC were reduced in gynogenetic triploids when compared to sexual diploids. Different patterns in positively selected sites (PSS) between gynogens and sexual gibel carp were also found.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

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

2013

Kód důvěrnosti údajů

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

Název periodika

BMC Evolutionary Biology

ISSN

1471-2148

e-ISSN

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Svazek periodika

13

Číslo periodika v rámci svazku

JUN 14 2013

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

15

Strana od-do

122

Kód UT WoS článku

000320774400001

EID výsledku v databázi Scopus

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