J 2017

MAJOR HISTOCOMPATIBILITY COMPLEX GENES AND PARASITES IN CYPRINID FISH

VETEŠNÍKOVÁ ŠIMKOVÁ, Andrea

Basic information

Original name

MAJOR HISTOCOMPATIBILITY COMPLEX GENES AND PARASITES IN CYPRINID FISH

Authors

VETEŠNÍKOVÁ ŠIMKOVÁ, Andrea (203 Czech Republic, guarantor, belonging to the institution)

Edition

VIE ET MILIEU-LIFE AND ENVIRONMENT, BANYULS-SUR-MER CEDEX, FRANCE, OBSERVATOIRE OCEANOLOGIQUE BANYULS, 2017, 0240-8759

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10613 Zoology

Country of publisher

France

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 0.475

RIV identification code

RIV/00216224:14310/17:00095545

Organization unit

Faculty of Science

UT WoS

000423264900010

Keywords in English

MHC; DAB genes; freshwater fish; parasites; selection; mate choice; hybridization; diploid-polyploid complex

Tags

Změněno: 6/4/2018 15:57, Ing. Nicole Zrilić

Abstract

V originále

In this paper, I reviewed current knowledge on the major histocompatibility complex (MHC) in fish, specifically focusing on the MHC IIB class in cyprinid species. The general hypotheses on the origin of MHC genes and the mechanisms maintaining the polymorphism of these genes are presented and exemplified by studies performed on fish. Among them, parasite-mediated selection (balancing selection) and reproductive mechanisms based on mating preferences are the most often cited mechanisms maintaining the extensive MHC polymorphism in fish. In fish, MHC polymorphism in populations is driven by parasites through overdominant selection or frequency-dependent selection. However, the intermediate number of MHC alleles was documented at the individual level associated with the lowest parasite load. A trade-off between investing in MHC and other components of life maintenance has been hypothesized and documented by inter-species (comparative analyses) and within-species studies. Sexual selection acts in the evolution of MHC polymorphism, where good or compatible genes of the male are generally selected by the female through mating preference. A mating preference for MHC genes has been documented in several fish species and it seems that the MHC diversity of the potential mating partner is evaluated by the olfactory system.

Links

GAP505/12/0375, research and development project
Name: Evolučně-imunitní a ekologické aspekty parazitace u hybridních a polyploidních kaprovitých ryb
Investor: Czech Science Foundation
GBP505/12/G112, research and development project
Name: ECIP - Evropské centrum ichtyoparazitologie
Investor: Czech Science Foundation