Effects of Freshwater Pollution on the Genetics of Zebra Mussels (Dreissena polymorpha) at the Molecular and Population Level
Joint Authors
Seitz, Alfred
Thomas, Emilia G.
Štambuk, Anamaria
Klobučar, Göran I. V.
Griebeler, Eva Maria
Šrut, Maja
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-04-27
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Revealing long-term effects of contaminants on the genetic structure of organisms inhabiting polluted environments should encompass analyses at the population, molecular, and cellular level.
Following this concept, we studied the genetic constitution of zebra mussel populations from a polluted (Dp) and reference sites (Cl) at the river Drava, Croatia, and applied microsatellite and DNA damage analyses (Comet assay, micronucleus test (MNT)).
Additionally, mussels from both populations were exposed to polluted wastewater in the laboratory for three days, and DNA damage was analyzed to evaluate acclimatization and genetic adaptation of the investigated populations to the polluted environment.
The two populations differed in their genetic constitution.
Microsatellite analysis suggested that Dp had undergone a genetic bottleneck.
Comet assay did not indicate any difference in DNA damage between the two populations, but MNT revealed that Dp had an increased percentage of micronuclei in hemocytes in comparison to Cl.
The laboratory experiment revealed that Dp had a lower percentage of tail DNA and a higher percentage of micronuclei than Cl.
These differences between populations were possibly caused by an overall decreased fitness of Dp due to genetic drift and by an enhanced DNA repair mechanism due to acclimatization to pollution in the source habitat.
American Psychological Association (APA)
Thomas, Emilia G.& Šrut, Maja& Štambuk, Anamaria& Klobučar, Göran I. V.& Seitz, Alfred& Griebeler, Eva Maria. 2014. Effects of Freshwater Pollution on the Genetics of Zebra Mussels (Dreissena polymorpha) at the Molecular and Population Level. BioMed Research International،Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-498778
Modern Language Association (MLA)
Thomas, Emilia G.…[et al.]. Effects of Freshwater Pollution on the Genetics of Zebra Mussels (Dreissena polymorpha) at the Molecular and Population Level. BioMed Research International No. 2014 (2014), pp.1-11.
https://search.emarefa.net/detail/BIM-498778
American Medical Association (AMA)
Thomas, Emilia G.& Šrut, Maja& Štambuk, Anamaria& Klobučar, Göran I. V.& Seitz, Alfred& Griebeler, Eva Maria. Effects of Freshwater Pollution on the Genetics of Zebra Mussels (Dreissena polymorpha) at the Molecular and Population Level. BioMed Research International. 2014. Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-498778
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-498778