The Ophiostoma clavatum species complex : a newly defined group in the Ophiostomatales including three novel taxa

Show simple item record Linnakoski, Riikka Jankowiak, Robert Villari, Caterina Kirisits, Thomas Solheim, Halvor De Beer, Z. Wilhelm Wingfield, Michael J. 2016-07-11T06:09:57Z 2016-05
dc.description.abstract Two species of blue-stain fungi with similar morphologies, Ophiostoma brunneociliatum and O. clavatum, are associates of bark beetles infesting Pinus spp. in Europe. This has raised questions whether they represent distinct taxa. Absence of herbarium specimens and contaminated or mistakenly identified cultures of O. brunneo-ciliatum and O. clavatum have accentuated the uncertainty regarding their correct identification. The aim of this study was to reconsider the identity of European isolates reported as O. brunneo-ciliatum and O. clavatum by applying DNA-based identification methods, and to provide appropriate type specimens for them. Phylogenetic analyses of the ITS, βT, TEF-1 and CAL gene sequences revealed that the investigated isolates represent a complex of seven cryptic species. The study confirmed that ITS data is insufficient to delineate species in some Ophiostoma species clusters. Lectotypes and epitypes were designated for O. clavatum and O. brunneo-ciliatum, and three new species, O. brunneolum, O. macroclavatum and O. pseudocatenulatum, were described in the newly defined O. clavatum-complex. The other two species included in the complex are O. ainoae and O. tapionis. The results suggest co-evolution of these fungi in association with specific bark beetles. The results also confirm the identity of the fungus associated with the pine bark beetle Ips acuminatus as O. clavatum, while O. brunneo-ciliatum appears to be mainly associated with another pine bark beetle, Ips sexdentatus. en_ZA
dc.description.department Microbiology and Plant Pathology en_ZA
dc.description.embargo 2017-05-31
dc.description.librarian hb2016 en_ZA
dc.description.sponsorship The University of Helsinki and the Emil Aaltonen Foundation, Finland; the University of Pretoria, the members of the Tree Protection Co-operative Programme (TPCP) and the THRIP initiative of the Department of Trade and Industry, South Africa; the Ministry of Science and Higher Education of the Republic of Poland; Ministero dell’Istruzione, dell’Università e della Ricerca (PRIN 200774ENMR ‘Climatic change and Italian pine pests: a model study’), Italy; the European Union’s Seventh Framework Programme FP7/2007–2013 (KBBE 2009-3) under grant agreement 245268 ISEFOR; and the Norwegian Biodiversity Information Centre (pnr. 70184233). en_ZA
dc.description.uri en_ZA
dc.identifier.citation Linnakoski, R, Jankowiak, R, Villari, C, Kirisits, T, Solheim, H, De Beer, ZW & Wingfield, MJ 2016, 'The Ophiostoma clavatum species complex : a newly defined group in the Ophiostomatales including three novel taxa', Antonie van Leeuwenhoek, International Journal of General and Molecular Microbiology, vol. 109, pp. 987-1018. en_ZA
dc.identifier.issn 0003-6072 (print)
dc.identifier.issn 1572-9699 (online)
dc.identifier.other 10.1007/s10482-016-0700-y
dc.language.iso en en_ZA
dc.publisher Springer en_ZA
dc.rights © Springer International Publishing Switzerland 2016. The original publication is available at : http://link.springer.comjournal/10482. en_ZA
dc.subject Bark beetle-associated fungi en_ZA
dc.subject Ophiostomatoid fungi en_ZA
dc.subject Ophiostoma brunneolum en_ZA
dc.subject Ophiostoma macroclavatum en_ZA
dc.subject Ophiostoma pseudocatenulatum en_ZA
dc.title The Ophiostoma clavatum species complex : a newly defined group in the Ophiostomatales including three novel taxa en_ZA
dc.type Postprint Article en_ZA

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