Clonal and population RAPD variation of cercariae obtained from Bucephalus polymorphus sporocysts (Trematoda: Bucephalidae)

Clonal and population RAPD variation of cercariae obtained from Bucephalus polymorphus sporocysts... 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Clonal and population RAPD variation of cercariae obtained from Bucephalus polymorphus sporocysts (Trematoda: Bucephalidae)

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2009 by MAIK Nauka
Subject
Biomedicine; Microbial Genetics and Genomics; Animal Genetics and Genomics; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795409010098
Publisher site
See Article on Publisher Site

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.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Jan 8, 2009

References

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