2009
A comparison of genetic variation at major histocompatibility complex and microsatellite loci in the wild populations of freshwater cyprinid Leuciscus cephalus across geographical scale
SEIFERTOVÁ, Mária a Andrea VETEŠNÍKOVÁ ŠIMKOVÁZákladní údaje
Originální název
A comparison of genetic variation at major histocompatibility complex and microsatellite loci in the wild populations of freshwater cyprinid Leuciscus cephalus across geographical scale
Název česky
A comparison of genetic variation at major histocompatibility complex and microsatellite loci in the wild populations of freshwater cyprinid Leuciscus cephalus across geographical scale
Autoři
SEIFERTOVÁ, Mária (703 Slovensko, garant) a Andrea VETEŠNÍKOVÁ ŠIMKOVÁ (703 Slovensko)
Vydání
13th European Congress of Ichthyology, 2009
Další údaje
Jazyk
angličtina
Typ výsledku
Konferenční abstrakt
Obor
10600 1.6 Biological sciences
Stát vydavatele
Litva
Utajení
není předmětem státního či obchodního tajemství
Kód RIV
RIV/00216224:14310/09:00029729
Organizační jednotka
Přírodovědecká fakulta
ISBN
978-9955-18-452-2
Klíčová slova česky
MHC genetic diversity balancing selection microsatellites
Klíčová slova anglicky
MHC genetic diversity balancing selection microsatellites
Příznaky
Mezinárodní význam
Změněno: 9. 2. 2010 14:52, Mgr. Mária Seifertová, Ph.D.
V originále
The genetic diversity in the wild populations is the result of neutral evolutionary processes and natural selection. Therefore, investigating genetic variation at multiple types of molecular markers (neutral and selective) represents convenient approach that provides to separate the effect of selection from genetic drift or migration. In this study, we compared data from two molecular markers, namely microsatellites as a neutral marker that are affected above all by genome wild evolutionary processes, and major histocompatibility complex (MHC) gene as a selective marker that represent one of the best candidates to study natural selection in wild populations. Genetic variability at exon 2 of DAB genes belonging to MHC class IIB genes and twelve polymorphic microsatellite loci was analyzed within and between fifteen populations of freshwater cyprinid fish Leuciscus cephlalus in Europe (including Czech Republic, France, Italy, Bulgaria, Finland, Spain, and Poland). The effect of geographical distance between populations on the genetic variation was also examined. The results indicated that MHC variation was affected by balancing selection rather than random genetic drift and emphasized the role of geographic distance (or isolation by distance) on the degree and sorting of genetic variation.
Česky
The genetic diversity in the wild populations is the result of neutral evolutionary processes and natural selection. Therefore, investigating genetic variation at multiple types of molecular markers (neutral and selective) represents convenient approach that provides to separate the effect of selection from genetic drift or migration. In this study, we compared data from two molecular markers, namely microsatellites as a neutral marker that are affected above all by genome wild evolutionary processes, and major histocompatibility complex (MHC) gene as a selective marker that represent one of the best candidates to study natural selection in wild populations. Genetic variability at exon 2 of DAB genes belonging to MHC class IIB genes and twelve polymorphic microsatellite loci was analyzed within and between fifteen populations of freshwater cyprinid fish Leuciscus cephlalus in Europe (including Czech Republic, France, Italy, Bulgaria, Finland, Spain, and Poland). The effect of geographical distance between populations on the genetic variation was also examined. The results indicated that MHC variation was affected by balancing selection rather than random genetic drift and emphasized the role of geographic distance (or isolation by distance) on the degree and sorting of genetic variation.
Návaznosti
| GA524/07/0188, projekt VaV |
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| LC522, projekt VaV |
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| MSM0021622416, záměr |
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