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Phylogeny of the Acarosporaceae (Lecanoromycetes, Ascomycota, Fungi) and the evolution of carbonized ascomata
Swedish Museum of Natural History, Department of Botany.
Universidad Rey Juan Carlos, Madrid.
Czech University of Life Sciences.
Swedish Museum of Natural History, Department of Botany.ORCID iD: 0000-0002-8295-5198
2015 (English)In: Fungal diversity, ISSN 1560-2745, Vol. 73, 145-158 p.Article in journal (Refereed) Published
Abstract [en]

The phylogeny of the Acarosporaceae (Lecanoromycetes, Acarosporomycetidae, Acarosporales) is investigated using data from three molecular markers; nuclear ITS-LSU rDNA, mitochondrial SSU and β-tubulin. Acarosporaceae is shown to be constituted by six main clades; Myriospora, Timdalia, Pleopsidium, a clade composed by Acarospora rhizobola and A. terricola, the poorly supported Sarcogyne clade (including several Polysporina and Acarospora species) and the Acarospora clade (including the type of Polysporina, P. simplex, and several other Polysporina species). The common ancestor of the Acarosporaceae did not produce strongly black pigmented (carbonized or melanized) ascomata, but this trait has arisen secondarily and independently numerous times in the evolution of the group. The number of changes in character states of both carbonized epihymenium and carbonized exciple are considerably more than the minimum number. The genera Sarcogyne and Polysporina—largely circumscribed based on the presence of black pigmented ascomata—are shown to be distinctly non-monophyletic. The presence of green algae in the ascoma margin (lecanorine or lecideine ascomata) may vary even within single species.

Place, publisher, year, edition, pages
2015. Vol. 73, 145-158 p.
Keyword [en]
Convergent evolution, lichens, Lichenized fungi, Lichenicolous
National Category
Biological Systematics
Research subject
Diversity of life
URN: urn:nbn:se:nrm:diva-1280DOI: 10.1007/s13225-015-0332-yOAI: diva2:848632
The Swedish Taxonomy Initiative (ArtDatabanken, SLU)Swedish Research Council, 621-2009-5372Swedish Research Council, 621-2012-3990
Available from: 2015-08-25 Created: 2015-08-25 Last updated: 2015-08-25Bibliographically approved

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