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题名: Phylogenetic studies on the Thamnocalamus group and its allies (Gramineae : Bambusoideae) based on ITS sequence data
作者: null(郭振华); Chen, YY; null(李德铢)
刊名: MOLECULAR PHYLOGENETICS AND EVOLUTION
关键词: Thamnocalamus group ; allies ; phylogenetic analyses ; ITS
英文摘要: Phylogenetic analyses, using the parsimony method and the neighbor joining method, of 31 species of the Thamnocalamus group and its allies based on internal transcribed spacer (ITS) sequences in nuclear ribosomal DNA are presented. Two species from Arundinaria and Acidosasa were used as outgroups. The ITS phylogeny strongly supports the monophyly of the Thamnocalamus group and its allies, which have pachymorph rhizomes and semelauctant synflorescences with three stamens. Within this clade, Chimonocalamus pallens was resolved in the basal position. The Thamnocalamus group, including species placed in Thamnocalamus, Fargesia (Sinarundinaria, Borinda), and Yushania, may be polyphyletic/paraphyletic according to the ITS phylogeny, but internal support was relatively low. All three sampled species of Ampelocalamus were resolved as a monophyletic group and may be related to Drepanostachyum hookerianum. Two taxa of Thamnocalamus and the species Gaoligongshania megalothyrsa were resolved as monophyletic despite their different morphological characters, but again with a low bootstrap support. Within the Fargesia yunnanensis sub-clade, the sister relationship of Fargesia fungosa and Fargesia edulis was supported. Another subclade, the Fargesia communis clade, was also weakly supported as monophyletic. However, further resolution within the Thamnocalamus group has not been provided by this sequence data. The results indicate that reevaluation of relationships within this group is necessary. (C) 2001 Elsevier Science.
出版日期: 2002
卷号: 22, 期号:1, 页码:20-30
DOI标识: 10.1006/mpev.2001.1039
语种: 英语
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内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/11243
Appears in Collections:中国西南野生生物种质资源库_期刊论文

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作者单位: 1.Chinese Acad Sci, Lab Plant Biodivers & Biogeog, Kunming Inst Bot, Kunming 650204, Yunnan, Peoples R China

Recommended Citation:
Guo, ZH; Chen, YY; Li, DZ.Phylogenetic studies on the Thamnocalamus group and its allies (Gramineae : Bambusoideae) based on ITS sequence data,MOLECULAR PHYLOGENETICS AND EVOLUTION,2002,22(1):20-30
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