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dc.contributor.author | Woudenberg, J.H.C.![]() |
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dc.contributor.author | Hanse, B.![]() |
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dc.contributor.author | Van Leeuwen, G.C.M.![]() |
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dc.contributor.author | Groenewald, Johannes Zacharias![]() |
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dc.contributor.author | Crous, Pedro W.![]() |
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dc.date.accessioned | 2017-08-15T09:35:30Z | |
dc.date.available | 2017-08-15T09:35:30Z | |
dc.date.issued | 2017-06-06 | |
dc.description | We would like to thank Carmen Wijnen (Westerdijk Institute, Evolutionary Phytopathology group) for help with DNA isolation and sequencing. | en_ZA |
dc.description.abstract | In 2007 a new Stemphylium leaf spot disease of Beta vulgaris (sugar beet) spread through the Netherlands. Attempts to identify this destructive Stemphylium sp. in sugar beet led to a phylogenetic revision of the genus. The name Stemphylium has been recommended for use over that of its sexual morph, Pleospora, which is polyphyletic. Stemphylium forms a well-defined monophyletic genus in the Pleosporaceae, Pleosporales (Dothideomycetes), but lacks an up-to-date phylogeny. To address this issue, the internal transcribed spacer 1 and 2 and intervening 5.8S nr DNA (ITS) of all available Stemphylium and Pleospora isolates from the CBS culture collection of the Westerdijk Institute (N = 418), and from 23 freshly collected isolates obtained from sugar beet and related hosts, were sequenced to construct an overview phylogeny (N = 350). Based on their phylogenetic informativeness, parts of the protein-coding genes calmodulin and glyceraldehyde-3-phosphate dehydrogenase were also sequenced for a subset of isolates (N = 149). This resulted in a multi-gene phylogeny of the genus Stemphylium containing 28 species-clades, of which five were found to represent new species. The majority of the sugar beet isolates, including isolates from the Netherlands, Germany and the UK, clustered together in a species clade for which the name S. beticola was recently proposed. Morphological studies were performed to describe the new species. Twenty-two names were reduced to synonymy, and two new combinations proposed. Three epitypes, one lectotype and two neotypes were also designated in order to create a uniform taxonomy for Stemphylium. | en_ZA |
dc.description.department | Microbiology and Plant Pathology | en_ZA |
dc.description.librarian | am2017 | en_ZA |
dc.description.sponsorship | The Netherlands Food and Consumer Product Safety Authority (NVWA) | en_ZA |
dc.description.uri | http://www.studiesinmycology.org | en_ZA |
dc.identifier.citation | Woudenberg, J.H.C., Hanse, B., Van Leeuwen, G.C.M., Groenewald, J.Z. & Crous, P.W. 2017, 'Stemphylium revisited', Studies in Mycology, vol. 87, pp. 77-103. | en_ZA |
dc.identifier.issn | 0166-0616 (print) | |
dc.identifier.issn | 1872-9797 (online) | |
dc.identifier.other | 10.1016/j.simyco.2017.06.001 | |
dc.identifier.uri | http://hdl.handle.net/2263/61651 | |
dc.language.iso | en | en_ZA |
dc.publisher | Elsevier | en_ZA |
dc.rights | © 2017 Westerdijk Fungal Biodiversity Institute. Production and hosting by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/bync-nd/4.0/). | en_ZA |
dc.subject | Morphology | en_ZA |
dc.subject | Multi-gene phylogeny | en_ZA |
dc.subject | Pleospora | en_ZA |
dc.title | Stemphylium revisited | en_ZA |
dc.type | Article | en_ZA |