title: [Characteristics of the genetic structure of parasite and host populations by the example of helminthes from moor frog Rana arvalis Nilsson].
abstract: The genetic structure of populations of four helminth species from moor frog Rana arvalis, in comparison with the population-genetic structure of the host, has been studied with the gel-electrophoresis method. As compared with the host, parasites are characterized by more distinct deviation from the balance of genotypic frequencies and higher level of interpopulation genetic differences. The genetic variability indices in the three of four frog helminthes examined are lower than those in the host. Moreover, these indices are lower than the average indices typical of free-living invertebrates; this fact contradicts the opinion on polyhostality of these helminthes and their wide distribution.
authors.forename: O N
authors.initials: ON
authors.lastname: Zhigalev
mesh_terms: D000818:Animals; D020552:Comet Assay; D014644:Genetic Variation; D005828:Genetics, Population / Q000379:methods; D006376:Helminths / Q000235:genetics*; D011898:Ranidae / Q000469:parasitology*