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      Phylogeny and taxonomy of the Ophiostoma piceae complex and the Dutch elm disease fungi

      Harrington, Thomas C.; McNew, Doug; Steimel, Joseph; Hofstra, Deborah; Farrell, Roberta L.
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      Phylogeny.pdf
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       www.mycologia.org
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      Harrington, T.C., McNew, D., Steimel, J., Hofstra, D. & Farrell, R. (2001). Phylogeny and taxonomy of the Ophiostoma piceae complex and the Dutch elm disease fungi. Mycologia, 93(1), 111-136.
      Permanent Research Commons link: https://hdl.handle.net/10289/4723
      Abstract
      The Ophiostoma piceae complex forms a monophyletic group of insect-dispersed pyrenomycetes with synnemata (Pesotum) and micronematous (Sporothrix) synanamorphs. Other species of Ophios-toma outside of the O. piceae complex that form syn-nemata lack the Sporothrix state. The nine recognized species within the 0. piceae complex are delimited by synnema morphology, growth rate at 32 C, mating reactions and sequences of the internal transcribed spacer (ITS) region of the rDNA operon. Phyloge-netic analysis of the ITS region suggests two major clades in the complex, one that causes bluestain in primarily coniferous hosts and the other on primarily hardwood hosts. In the coniferous group are O. pi-ceae, O. canum, O. floccosum and the recently de-scribed O. setosum (anamorph Pesotum cupulatum sp. nov.). In the hardwood group are O. querci, O. caton-ianum, and the Dutch elm disease fungi: O. ulmi, O. novo-ulmi and O. himal-ulmi. Restriction fragment length polymorphisms of the ITS region are shown to be a convenient diagnostic tool for delimiting these species.
      Date
      2001
      Type
      Journal Article
      Publisher
      The Mycological Society of America
      Rights
      This article has been published in the journal: Mycologia. © 2001 by The Mycological Society of America.
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      • Science and Engineering Papers [3142]
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