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Genetic diversity in Finland of the birch endophyte Gnomonia setacea as determined by RAPD-PCR markers

Published online by Cambridge University Press:  01 March 1999

JANNE H. LAPPALAINEN  and
TAPANI YLI-MATTILA
JANNE H. LAPPALAINEN
Affiliation:
Section of Ecology, Department of Biology, University of Turku, FIN-20014 Turku, Finland
TAPANI YLI-MATTILA
Affiliation:
Laboratory of Plant Physiology and Molecular Biology, Department of Biology, University of Turku, FIN-20014 Turku, Finland
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Abstract

We studied the occurrence of genotypes of Gnomonia setacea by RAPD-PCR analysis at two natural sites in SW Finland to study site-, tree- and leaf-level genetic diversity. The analysis was performed with two primers by using 40 isolates from a total of 250 colonies isolated from two trees from each of two sites. Genetic diversity of G. setacea was found to be very high: every isolate studied was a unique genotype, even within the same leaf. This is probably due to sexual reproduction and the horizontal transmission system of airborne spores. Genotype distribution exhibited site-level similarity, indicating limited spore deposition and the ability to form local populations.

Type
Research Article
Information
Mycological Research , Volume 103 , Issue 3 , March 1999 , pp. 328 - 332
Copyright
© The British Mycological Society 1999

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