Phylogeny and taxonomy of meristematic rock-inhabiting blackfungi in the Dothideomycetes based on multi-locus phylogenies
Author(s)
Egidi, Eleonora
Date Issued
May 16, 2014
Type
Doctoral Thesis
Abstract
The last decade has revealed an unexpected diversity of fungi associated with natural rocks, often collected in environments influenced by harsh climatic conditions. Yet the phylogenetic affiliations and the taxonomy of many of these extreme fungi, mainly belonging to Dothideomycetes, the largest class of Ascomycota, have been only partially assessed. In the present study it has been confirmed that most rock inhabiting-fungi (RIF) are highly polyphyletic among Dothideomycetidae, placed mainly within the Capnodiales, an order otherwise incorporating several families of fungi with a prominent role in plant disease. Novel taxa were identified within the two major and distinct clades of Teratosphaeriaceae, both comprising meristematic black fungi. Thirty-one novel species and thirteen new genera are proposed, based on ITS and partial nucLSU, RPB2 and BT2 sequences. Ecological preferences and evolutionary pathways of RIF from cold environments are also investigated.
Additional information
Dottorato di ricerca in Evoluzione biologica e biochimica
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