Effects of population size on genetic diversity and seed production in the rare Dictamnus albus(Rutaceae) in central Germany

It is widely assumed that population size significantly affects the dynamics of plant populations. Smaller populations are threatened by genetic drift and inbreeding depression, both of which may result in a decrease of genetic variation and a resulting negative impact on plant fitness. In our study...

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Bibliographic Details
Published in:Conservation genetics 2005-01, Vol.6 (1), p.63-73
Main Authors: Hensen, Isabell, Oberprieler, Christoph
Format: Article
Language:English
Subjects:
Dictamnus albus
Genetic diversity
Genetic drift
Inbreeding
Plant populations
Population differentiation
Population number
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Summary:It is widely assumed that population size significantly affects the dynamics of plant populations. Smaller populations are threatened by genetic drift and inbreeding depression, both of which may result in a decrease of genetic variation and a resulting negative impact on plant fitness. In our study we analysed the patterns of random amplified polymorphic DNA (RAPD) variation among 10 Dictamnus albuspopulations of varying size. The aim was to examine local differentiation in relation to spatial isolation resulting from limited population size and geographical distancing between populations. Significant correlations were noted between population size and both percentage of polymorphic loci (P
ISSN:1566-0621
1572-9737
DOI:10.1007/s10592-004-7745-6