a 2014

Host-parasite interactions: a case study of the Barbus hybrid zone

GETTOVÁ, Lenka, Gilles ANDRÉ and Andrea VETEŠNÍKOVÁ ŠIMKOVÁ

Basic information

Original name

Host-parasite interactions: a case study of the Barbus hybrid zone

Authors

GETTOVÁ, Lenka (703 Slovakia, belonging to the institution), Gilles ANDRÉ (250 France) and Andrea VETEŠNÍKOVÁ ŠIMKOVÁ (203 Czech Republic, guarantor)

Edition

3rd Workshop of European Centre of Ichthyoparasitology; Book of Abstracts, Skalný Mlýn, Czech Republic, 2014

Other information

Language

English

Type of outcome

Konferenční abstrakt

Field of Study

10600 1.6 Biological sciences

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/14:00074357

Organization unit

Faculty of Science

ISBN

978-80-210-7492-7

Keywords in English

parasites; MHC; physiological and immunological indexes; host-parasite interactions
Změněno: 25/1/2015 16:02, Mgr. Lenka Gettová

Abstract

V originále

Fish specimens were sampled along the hybrid zone of two congeneric species B. barbus and B. meridionalis and subsequently dissected for the metazoan parasites. Overall, significantly higher abundance of metazoan parasites was found in the individuals of widely distributed B. barbus compared to rare B. meridionalis as well as hybrid individuals which did not differ significantly from each other. In concordance with the level of parasite infection, significantly higher values of splenosomatic index and lower condition factor were revealed in highly infected B. barbus in contrast to B. meridionalis. Intermediate values to those of parental species were detected in hybrid individuals. First preliminary results on the study of MHC genes based on 90 fish genotypes revealed an intermediate number of DAB-like alleles (3-4 alleles on average) expressed in hybrids compared to the B. barbus and B. meridionalis individuals which expressed typically 4-5 and 2-3 DAB-like alleles, respectively. Therefore, higher number of DAB-like alleles expressed in highly parasitized B. barbus comparing to both B. meridionalis and hybrids characteristic by lower parasite infection seems to be the result of co-evolutionary processes between hosts and their parasites.

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