Phylogeny and taxonomy of the Asian grapevine leaf rust fungus, Phakopsora euvitis, and its allies (Uredinales)

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  • Chatasiri Sinchai
    Graduate School of Science and Engineering, Ibaraki University
  • Ono Yoshitaka
    Laboratory of Biological Sciences, Faculty of Education, Ibaraki University

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タイトル別名
  • Phylogeny and taxonomy of the Asian grapevine leaf rust fungus, <i>Phakopsora euvitis</i>, and its allies (Uredinales)

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<p>Heteroecious Phakopsora euvitis, P. vitis, and P. ampelopsidis, autoecious P. meliosmae, and an unconnected Aecidium on Meliosma are closely allied. A total of 45 collections representing the five rust fungi from Japan, Australia, and East Timor were subjected to molecular phylogenetic analyses: the D1/D2 region of nuclear large subunit rDNA and nuclear small subunit internal transcribed spacer 2 (ITS2) region including 5.8S rDNA were analyzed. Tree topologies generated from parsimony and distance methods of the D1/D2 and ITS2 sequences were similar. The 45 collections (44 for ITS2 and 33 for D1/D2, with 32 common for both analyses) are grouped into seven clades: P. ampelopsidis, P. vitis, unconnected Aecidium, P. euvitis from Japan, P. euvitis from Australia and East Timor, P. meliosmae on M. myriantha, and P. meliosmae on M. tenuis. The results confirm the phylogenetic distinctness of P. euvitis, P. ampelopsidis, and P. vitis distributed in Japan. A grapevine leaf rust fungus in Australia and East Timor has genetically diverged from P. euvitis in Japan. The unconnected Aecidium is highly likely to be an aecial anamorph of a Phakopsora fungus. Autoecious Phakopsora fungi on M. meliosmae and M. tenuis need further host-specificity and morphological studies to confirm their taxonomic status.</p>

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  • Mycoscience

    Mycoscience 49 (1), 66-74, 2008

    一般社団法人 日本菌学会

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