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Genetic diversity in Xanthoria parietina (L.) Th. Fr. (lichen-forming ascomycete) from worldwide locations

Published online by Cambridge University Press:  11 November 2004

Rosmarie HONEGGER ,
Undine ZIPPLER ,
Sandra SCHERRER  and
Paul S. DYER
Rosmarie HONEGGER
Affiliation:
Institute of Plant Biology, University of Zürich, Zollikerstrasse 107, CH-8008 Zürich, Switzerland
Undine ZIPPLER
Affiliation:
Institute of Plant Biology, University of Zürich, Zollikerstrasse 107, CH-8008 Zürich, Switzerland
Sandra SCHERRER
Affiliation:
Institute of Plant Biology, University of Zürich, Zollikerstrasse 107, CH-8008 Zürich, Switzerland
Paul S. DYER
Affiliation:
School of Biology, University of Nottingham, University Park, Nottingham NG7 2RD, UK
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Abstract

Specimens of Xanthoria parietina were collected from worldwide locations and ascospore discharge used to establish axenic cultures of the mycobiont. DNA was extracted and RAPD-PCR fingerprinting of 59 isolates was successfully achieved, resulting in 58 unique fingerprints. 110 multilocus RAPD markers were generated and used to construct a dendrogram. Two main groups were distinguished (75% bootstrap support): the first comprising samples from the Iberian Peninsula, the Balearic and Canary Islands; the second comprising all other worldwide samples including isolates from throughout Europe and North America. Samples from Australia and New Zealand clustered with the second group except one additional, phenotypically distinct specimen, not belonging to X. parietina, which formed an outgroup. However, comparative DNA sequence analyses are required to verify this interpretation.

Keywords

genetic diversitylichenpopulation biologyRAPD-PCRXanthoria
Type
Research Article
Information
The Lichenologist , Volume 36 , Issue 6 , November 2004 , pp. 381 - 390
Copyright
© British Lichen Society 2004

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