The phylogenetic relationships of Rhodosporidium dacryoidum Fell [Ustilaginales], Hunter et Tallman based on the partial sequences of 18S and 26S ribosomal RNAs: The proposal of Sakaguchi Gen. Nov., a heterobasidiomycetous yeast genus
1994
Yamada, Y. (Shizuoka Univ. (Japan). Faculty of Agriculture) | Maeda, K. | Mikata, K.
The partial base sequences of 18S and 26S rRNAs of Rhodosporidium fluviale, R. lusitaniae, and Erythrobasidium hasegawaianum were analyzed. In the 26S rRNA partial base sequencings, R. fluviale CBS 6568 and R. lusitaniae IGC 4599 and IGC 4642 had 81-82 and 77 percent similarities compared with R. toruloides (type species of genus Rhodosporidium) IFO 0599 and IFO 0880. Erythrobasidium hasegawaianum IFO 1058 showed 69-71, 59, 63, and 61 percent similarities with R. toruloides IFO 0559 and IFO 0880, L. scottii (type species of genus Leucosporidium) IFO 1923, R. dacryoidum IFO 1930 and IFO 1931, and Kondoa malvinella IFO 1936, respectively. In the 18S rRNA partial base sequencings, R. fluviale CBS 6568 and R. lusitaniae IGC 4599 and IGC 4641 had zero and two base differences with R. toruloides. Erythrobasidium hasegawaianum IFO 1958 showed ten, sixteen, three, and twenty base differences with R. toruloides IFO 0559 and IFO 0880, L. scottii IFO 1923, R. dacryoidum IFO 1930 and IFO 1931, and K. malvinella IFO 1936, respectively. Based on the sequence data obtained, a new genus, Sakaguchia was proposed for R. dacryoidum with a new combination, Sakaguchia dacryoides
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