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Genetic Variation and Relatedness of Freshwater Pearl Mussel Margaritifera margaritifera L. populations
Karlstad University, Division for Environmental Sciences.
2005 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

The two papers presented in this thesis focus on population genetic study on freshwater pearl mussel populations in Sweden, using RAPD method. In paper I, I examine genetic variation within and between 5 populations in a single drainage area in south western Sweden. In paper II, I study the evolutionary relationship, and how genetic variation is related to population size, age structure and geographic isolation in 14 populations of freshwater pearl mussel in south central Sweden. In both papers I and II, I found that genetic variation was larger than found in previous studies using other techniques, and variation was larger between than within populations. I did not found any correlation between geographic and genetic distance, which indicates that mussel populations have been adapted locally to environmental factors in a relatively short time. In paper I, I found that genetic distance between populations was greater than found in other studies, despite small geographic distances. In paper II, I found that populations were highly differentiated indicating little gene flow between them. There was no significant positive relation between genetic variation and population size or age structure but there was a significant positive relation between mean age and population size indicating that many populations have gone through bottlenecks recently.

Place, publisher, year, edition, pages
2005.
Series
Karlstad University Studies, ISSN 1403-8099 ; 2005:55
Keywords [en]
Margaritifera margaritifera, genetic variation, age structure, genetic distance
National Category
Biological Sciences
Research subject
Biology
Identifiers
URN: urn:nbn:se:kau:diva-2410ISBN: 91-7063-027-5 (print)OAI: oai:DiVA.org:kau-2410DiVA, id: diva2:24752
Presentation
2006-01-19, Andersalen, 11D 121, Karlstads universitetKarlstad, 13:15 (English)
Opponent
Supervisors
Available from: 2009-06-22 Created: 2009-06-22 Last updated: 2009-06-22Bibliographically approved
List of papers
1. Genetic Variation in Freshwater Pearl Mussel (Margaritifera margaritifera) Populations in south-western Sweden
Open this publication in new window or tab >>Genetic Variation in Freshwater Pearl Mussel (Margaritifera margaritifera) Populations in south-western Sweden
(English)Manuscript (preprint) (Other (popular science, discussion, etc.))
Identifiers
urn:nbn:se:kau:diva-2411 (URN)
Available from: 2009-06-22 Created: 2009-06-22 Last updated: 2010-01-14Bibliographically approved
2. Genetic Variability in Populations of Freshwater Pearl Mussels (Margaritifera margaritifera) in Relation to Population size, Age structure and Isolation
Open this publication in new window or tab >>Genetic Variability in Populations of Freshwater Pearl Mussels (Margaritifera margaritifera) in Relation to Population size, Age structure and Isolation
(English)Manuscript (preprint) (Other (popular science, discussion, etc.))
Identifiers
urn:nbn:se:kau:diva-2412 (URN)
Available from: 2009-06-22 Created: 2009-06-22 Last updated: 2010-01-14Bibliographically approved

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CiteExportLink to record
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Citation style
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