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Phylogenetic relationships of Japanese species of Heterobasidion—H. annosum sensu lato and an undetermined Heterobasidion sp.

     Forestry and Forest Products Research Institute, Tsukuba, Ibaraki 305-8687, Japan

Sawako Tokuda

     Hokkaido Forestry Research Institute Koshunai, Bibai, Hokkaido 079-0198, Japan

Peter K. Buchanan

     Landcare Research, Private Bag 92170, Auckland, New Zealand

Tsutomu Hattori

     Forestry and Forest Products Research Institute, Tsukuba, Ibaraki 305-8687, Japan

The phylogenetic relationships of two Japanese Heterobasidion species, H. annosum sensu lato and an undetermined species, were revealed based on three gene loci, glyceraldehyde 3-phosphate dehydrogenase (gpd), heat shock protein (hsp) and elongation factor 1- (ef). The tree, based on combined data of gpd, hsp and ef, showed that Japanese H. annosum s.l. was close to the European S-group, forming a subclade. The results of this study also provided strong support for the recognition of the undetermined Heterobasidion sp. as a distinct phylogenetic species closely related to H. araucariae.

Key words: elongation factor 1-, glyceraldehyde 3-phosphate dehydrogenase, heat shock protein, polypore, taxonomy