Phylogeny of the genus Pythium and description of new genera

被引：176
作者：
Uzuhashi, Shihomi [1 ]
Tojo, Motoaki [2 ]
Kakishima, Makoto [1 ]
机构：
[1] Univ Tsukuba, Grad Sch Life & Environm Sci, Tsukuba, Ibaraki 3058572, Japan
[2] Osaka Prefecture Univ, Grad Sch Life & Environm Sci, Osaka 5998531, Japan
来源：
MYCOSCIENCE | 2010年 / 51卷 / 05期
关键词：
Molecular phylogeny; rDNA; Sporangia; Taxonomy; CYTOCHROME-OXIDASE-II; RIBOSOMAL-RNA GENE; SP-NOV; MOLECULAR PHYLOGENY; DOWNY MILDEWS; LSU RDNA; SEQUENCE-ANALYSIS; DNA-SEQUENCES; PHYTOPHTHORA; REGION;
D O I：
10.1007/s10267-010-0046-7
中图分类号：
Q93 [微生物学];
学科分类号：
071005 ; 100705 ;
摘要：
Phylogeny of the genus Pythium is analyzed based on sequences of the large subunit ribosomal DNA D1/D2 region and cytochrome oxidase II gene region of Pythium isolates and comprehensive species of related taxa belonging to the Oomycetes. The phylogenetic trees show that the genus Pythium is a highly divergent group and divided into five well- or moderately supported monophyletic clades. Each clade is characterized by sporangial morphology such as globose, ovoid, elongated, or filamentous shapes. Based on phylogeny and morphology, the genus Pythium (s. str.) is emended, and four new genera, Ovatisporangium, Globisporangium, Elongisporangium, and Pilasporangium, are described and segregated from Pythium s. lato.
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收藏
页码：337 / 365
页数：29
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