Generic hyper-diversity in Stachybotriaceae
AuthorLombard, L; Houbraken, J; Decock, C; Samson, RA; Meijer, M; Reblova, M; Groenewald, JZ; Crous, PW
University of Melbourne Author/sCROUS, PIETER
AffiliationAgriculture and Food Systems
Document TypeJournal Article
CitationsLombard, L., Houbraken, J., Decock, C., Samson, R. A., Meijer, M., Reblova, M., Groenewald, J. Z. & Crous, P. W. (2016). Generic hyper-diversity in Stachybotriaceae. PERSOONIA, 36 (JUNE), pp.156-246. https://doi.org/10.3767/003158516X691582.
Access StatusOpen Access
The family Stachybotriaceae was recently introduced to include the genera Myrothecium, Peethambara and Stachybotrys. Members of this family include important plant and human pathogens, as well as several species used in industrial and commercial applications as biodegraders and biocontrol agents. However, the generic boundaries in Stachybotriaceae are still poorly defined, as type material and sequence data are not readily available for taxonomic studies. To address this issue, we performed multi-locus phylogenetic analyses using partial gene sequences of the 28S large subunit (LSU), the internal transcribed spacer regions and intervening 5.8S nrRNA (ITS), the RNA polymerase II second largest subunit (rpb2), calmodulin (cmdA), translation elongation factor 1-alpha (tef1) and β-tubulin (tub2) for all available type and authentic strains. Supported by morphological characters these data resolved 33 genera in the Stachybotriaceae. These included the nine already established genera Albosynnema, Alfaria, Didymostilbe, Myrothecium, Parasarcopodium, Peethambara, Septomyrothecium, Stachybotrys and Xepicula. At the same time the generic names Melanopsamma, Memnoniella and Virgatospora were resurrected. Phylogenetic inference further showed that both the genera Myrothecium and Stachybotrys are polyphyletic resulting in the introduction of 13 new genera with myrothecium-like morphology and eight new genera with stachybotrys-like morphology.
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