Genetic polymorphism inProteocephalus exiguusshown by enzyme electrophoresis
- 1 December 1996
- journal article
- research article
- Published by Cambridge University Press (CUP) in Journal of Helminthology
- Vol. 70 (4) , 345-349
- https://doi.org/10.1017/s0022149x00015649
Abstract
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.Keywords
This publication has 23 references indexed in Scilit:
- Intraspecific variation of isoenzymes in Taenia taeniaeformisInternational Journal for Parasitology, 1995
- Interbreeding, monophyly and the genetic yardstick: Species concepts in parasitesParasitology Today, 1992
- Morphological and enzyme variations of marine tapeworms,Hepatoxylon trichiuri(Cestoda: Trypanorhyncha) andH. megacephalum, off Kaikoura coast, New ZealandJournal of Natural History, 1992
- Genetic diversity and genetic differentiation inEchinococcus granulosus(Batsch, 1786) from domestic and sylvatic hosts on the mainland of AustraliaParasitology, 1990
- Molecular approaches to studying Helminth population genetics and phylogenyInternational Journal for Parasitology, 1990
- Genetic variability among natural populations of the liver fluke Fascioloides magna in white-tailed deer, Odocoileus virginianusCanadian Journal of Zoology, 1989
- Speciation of cestoda. Evidence for two sibling species in the complex Bothrimonus nylandicus (Schneider 1902) (Cestoda: Cyathocephalidea)Parasitology, 1988
- Genetic Variation of Ascaridoid Worms with Different Life CyclesEvolution, 1986
- Electrophoretic studies on enzymes of diploid and triploidparagonimus westermaniParasitology, 1985
- A Revision of the Cestode Family ProteocephalidaeJournal of Parasitology, 1915