Genetic polymorphism inProteocephalus exiguusshown by enzyme electrophoresis
Autor: | Stefano D'Amelio, Viliam Šnábel, Simonetta Mattiucci, Vladimíra Hanzelová, Lia Paggi |
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Rok vydání: | 1996 |
Předmět: | |
Zdroj: | Journal of Helminthology. 70:345-349 |
ISSN: | 1475-2697 0022-149X |
DOI: | 10.1017/s0022149x00015649 |
Popis: | Enzyme electrophoresis has been used to examine genetic diversity in a population ofProteocephalus exiguusLa Rue, 1911 (Cestoda: Proteocephalidae), parasitizing salmonid and coregonid fishes. Among 16 loci tested, three polymorphic loci (Ada, Got, Pgm-2) were found. Six different genotypes at theGotlocus distributed in Hardy-Weinberg equilibrium suggest remarkable genetic flexibility ofP. exiguus. Balancing selection is proposed as the mechanism maintaining genetic variation within the species. Data of genetic variability parameters (Ho= 0.064; He= 0.07; P = 0.19) and outcrossing rate (t = 0.842) ofP. exiguuspopulation have been provided. Possible factors affecting these data are discussed. |
Databáze: | OpenAIRE |
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