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Parsimony analyses of mtSSU and nITS rDNA sequences reveal the natural relationships of the lichen families Physciaceae and Caliciaceae

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Abstract:

The phylogenetic relationships of the lichenised families Caliciaceae and Physciaceae (Lecanorales, Ascomycota) are investigated with parsimony analyses of combined mtSSU and nITS rDNA sequences. Physciaceae include two well-supported groups, which correspond to the informally recognised "Buellia -group" and "Physcia-group". The prototunicate, mazaedia-forming representatives of Caliciaceae are derived from within Physciaceae, and fall within the "Buellia-group". Nomenclatural consequences of two different scenarios of changes in the present classification are discussed.

Keywords: ASCOMYCOTA; CALICIACEAE; CLASSIFICATION; LECANORALES; MOLECULAR PHYLOGENY; MTSSU RDNA; NITS RDNA; NOMENCLATURE; PHYSCIACEAE

Document Type: Miscellaneous

Affiliations: 1: Department of Ecology and Environmental Science, Umeå University, SE-901 87 Umeå, Sweden 2: Institut für Botanik, Karl-Franzens-Universität, Holteigasse 6, A-8010 Graz, Austria

Publication date: November 1, 2002

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