Enzyme electrophoresis has been used to examine genetic diversity in a population of Proteocephalus exiguus La 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 the Got locus distributed in Hardy-Weinberg equilibrium suggest remarkable genetic flexibility of P. exiguus. Balancing selection is proposed as the mechanism maintaining genetic variation within the species. Data of genetic variability parameters (H-o = 0.064; H-e = 0.07; P = 0.19) and outcrossing rate (t = 0.842) of P. exiguus population have been provided. Possible factors affecting these data are discussed.
Genetic polimorphism in Proteocephalus exiguus shown by enzyme electrophoresis / Snabel, V.; Hanzelova, V.; Mattiucci, Simonetta; D'Amelio, Stefano; Paggi, L.. - In: JOURNAL OF HELMINTHOLOGY. - ISSN 0022-149X. - 70:(1996), pp. 345-349. [10.1017/S0022149X00015649]
Genetic polimorphism in Proteocephalus exiguus shown by enzyme electrophoresis
MATTIUCCI, Simonetta;D'AMELIO, Stefano;
1996
Abstract
Enzyme electrophoresis has been used to examine genetic diversity in a population of Proteocephalus exiguus La 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 the Got locus distributed in Hardy-Weinberg equilibrium suggest remarkable genetic flexibility of P. exiguus. Balancing selection is proposed as the mechanism maintaining genetic variation within the species. Data of genetic variability parameters (H-o = 0.064; H-e = 0.07; P = 0.19) and outcrossing rate (t = 0.842) of P. exiguus population have been provided. Possible factors affecting these data are discussed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
