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- Title
Clonal and population RAPD variation of cercariae obtained from Bucephalus polymorphus sporocysts (Trematoda: Bucephalidae).
- Authors
Korsunenko, A. V.; Tyutin, A. V.; Semyenova, S. K.
- Abstract
Three arbitrary primers produced 114 RAPD markers for 37 cercariae from nine Bucephalus polymorphus sporocysts obtained from three Dreissena polymorpha mollusks, which were collected in two water reservoirs of the Volga basin. Analysis of the RAPD patterns established a unique genotype for each cercaria. The topology of an UPGMA dendrogram did not reliably differentiate the cercaria according to the corresponding sporocysts. However, three groups of genotypes were isolated and corresponded to the host mollusks, indicating that each cercaria clone had a different genotype set. A within-sporocyst variation made the greatest contribution (53.0%) to the total RAPD diversity, while the contributions of within-host and between-host variations to the total diversity were equal (23.5%). Cercariae isolated from two mollusks of the Rybinskoe Water Reservoir were more similar to each other than to cercariae from the geographically distant Gor’kovskoe Water Reservoir. Possible causes and distribution specifics of the observed genetic diversity of B. polymorphus are discussed.
- Subjects
CERCARIAE; RAPD technique; MOLLUSKS; PLATYHELMINTHES; TREMATODA; BUCEPHALIDAE; CLUSTER analysis (Statistics)
- Publication
Russian Journal of Genetics, 2009, Vol 45, Issue 1, p63
- ISSN
1022-7954
- Publication type
Article
- DOI
10.1134/S1022795409010098