uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Molecular phylogeny reveals a core clade of Rhytismatales
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organism Biology, Systematic Biology.
2011 (English)In: Mycologia, ISSN 0027-5514, E-ISSN 1557-2536, Vol. 103, no 1, 57-74 p.Article in journal (Refereed) Published
Abstract [en]

Rhytismatales (Leotiomycetes, Pezizomycotina, Ascomycota) are an order of mostly plant-associated ascomycetes with a global distribution. Well known taxa include the Rhytisma tar spots on Acer spp. and several needle-cast pathogens in genera Lophodermium and Meloderma. Critical studies are lacking at all taxonomic ranks from order to species, and in particular the genus taxonomy in the order has been criticized for being unnatural. We used nuclear LSU and mitochondrial SSU sequences in Bayesian phylogenetic analyses to define a core clade of Rhytismatales sensu strict. Some of the genera traditionally placed within the Rhytismatales, Ascodichaena, Marthamyces, Mellitiosporium, Potebniamyces, Propolis and Pseudophacidium, are shown to be phylogenetically distinct, all related to various other taxa at present placed in the polyphyletic Helotiales. Within the core clade only Cudonia, Spathularia and Terriera are supported as monophyletic. The large genera Coccomyces, Hypoderma and Lophoderminum all are polyphyletic as are a few smaller genera. The traditionally used characters of ascoma and spore shape are shown to be unreliable for the delimitation of monophyletic genera but in some cases can be useful when combined with other characters. In this study we provide 72 new nrLSU and 64 new mtSSU sequences. Together with publicly available sequences data for 103 specimens representing 91 species of Rhytismatales are now available. Despite this taxon sampling intensity is still too low to propose an alternative generic taxonomy.

Place, publisher, year, edition, pages
2011. Vol. 103, no 1, 57-74 p.
Keyword [en]
Helotiales, Leotiomycetes, Lophodermium, mitochondrial SSU, nuclear LSU
National Category
Biological Sciences
URN: urn:nbn:se:uu:diva-148068DOI: 10.3852/10-060ISI: 000286574400006PubMedID: 20943536OAI: oai:DiVA.org:uu-148068DiVA: diva2:401288
Available from: 2011-03-02 Created: 2011-03-01 Last updated: 2011-03-02Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textPubMed
By organisation
Systematic Biology
In the same journal
Biological Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 256 hits
ReferencesLink to record
Permanent link

Direct link