MHC variability, life-traits and parasite diversity of European cyprinid fish

ŠIMKOVÁ, Andrea, Eva OTTOVÁ a Serge MORAND. MHC variability, life-traits and parasite diversity of European cyprinid fish. Evolutionary Ecology. Springer Science, 2006, roč. 20, č. 3, s. 465-477. ISSN 0269-7653.

Základní údaje

• Originální název: MHC variability, life-traits and parasite diversity of European cyprinid fish
• Název česky: MHC variability, life-traits and parasite diversity of European cyprinid fish
• Autoři: ŠIMKOVÁ, Andrea (203 Česká republika, garant, domácí), Eva OTTOVÁ (203 Česká republika) a Serge MORAND (250 Francie).
• Vydání: Evolutionary Ecology, Springer Science, 2006, 0269-7653.

Další údaje

• Originální jazyk: angličtina
• Typ výsledku: Článek v odborném periodiku
• Obor: 10600 1.6 Biological sciences
• Stát vydavatele: Německo
• Utajení: není předmětem státního či obchodního tajemství
• Impakt faktor: Impact factor: 1.667
• Kód RIV: RIV/00216224:14310/06:00015627
• Organizační jednotka: Přírodovědecká fakulta
• UT WoS: 000239165200006
• Klíčová slova anglicky: MHC diversity; exon 2; metazoan parasites; cyprinid fish; life history traits
• Štítky: cyprinid fish, exon 2, life history traits, metazoan parasites, MHC diversity
• Příznaky: Mezinárodní význam, Recenzováno

Anotace

Potential links between fish life history traits, an immune investment as measured by variability of the MHC genes and parasitism were analysed in 14 species of cyprinid fish. The hypothesis of the diversity of MHC genes being driven by high parasite diversity, i.e. species richness, was tested and a potential relationship between the MHC diversity and fish life-history traits including adult mortality rate, fecundity, longevity and maturity was investigated. Molecular techniques (SSCP and sequencing) were applied to analyse the MHC nucleotide diversity of the exons 2 and 3 of DAB genes belonging to the MHC class IIB. The comparative analyses, using phylogenetic independent contrasts, revealed a negative relationship between parasite species richness and adult fish mortality rate. We also found a positive relationship between nucleotide diversity of the exon 2 and parasite species richness. Our results suggest that fish species, of which populations are exposed to high parasite pressure, in terms of high parasite species richness, maintain a high genetic diversity of the exon 2 of the MHC genes (presenting the peptide binding regions), allowing them to decrease their natural mortality rate.

Anotace česky

Potential links between fish life history traits, an immune investment as measured by variability of the MHC genes and parasitism were analysed in 14 species of cyprinid fish. The hypothesis of the diversity of MHC genes being driven by high parasite diversity, i.e. species richness, was tested and a potential relationship between the MHC diversity and fish life-history traits including adult mortality rate, fecundity, longevity and maturity was investigated. Molecular techniques (SSCP and sequencing) were applied to analyse the MHC nucleotide diversity of the exons 2 and 3 of DAB genes belonging to the MHC class IIB. The comparative analyses, using phylogenetic independent contrasts, revealed a negative relationship between parasite species richness and adult fish mortality rate. We also found a positive relationship between nucleotide diversity of the exon 2 and parasite species richness. Our results suggest that fish species, of which populations are exposed to high parasite pressure, in terms of high parasite species richness, maintain a high genetic diversity of the exon 2 of the MHC genes (presenting the peptide binding regions), allowing them to decrease their natural mortality rate.

Návaznosti

• GA524/04/1128, projekt VaV: Název: MHC třída IIB genů evropských kaprovitých ryb: jejich genetická variabilita a evoluce ve vztahu k životní strategii hostitelů a parazitismu

Investor: Grantová agentura ČR, MHC třída IIB genů evropských kaprovitých ryb: jejich genetická variabilita a evoluce ve vztahu k životní strategii hostitelů a parazitismu

• MSM0021622416, záměr: Název: Diverzita biotických společenstev a populací: kauzální analýza variability v prostoru a čase

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Diverzita biotických společenstev: kauzální analýza variability v prostoru a čase