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题名: Genetic variation and evolution of the alpine bamboos (Poaceae : Bambusoideae) using DNA sequence data
作者: null(郭振华); Chen, YY; null(李德铢); Yang, JB
刊名: JOURNAL OF PLANT RESEARCH
关键词: alpine bamboos ; evolution ; genetic variation ; ITS phylogeny
英文摘要: Difficulties in phylogenetic reconstruction are common within the woody bamboos due to their unique life cycles, a lack of morphological characters and even an absence of molecular evidence. The genetic variability and population structure of the bamboos are also poorly understood which impedes their exploitation via breeding. In this paper, ITS sequence data were used to examine the degree of genetic variation within the alpine bamboos and to explore their phylogeny. Twenty-three species representing three genera, Thamnocalamus, Fargesia and Yushania, of the alpine bamboos and one species of Ampelocalamus as an outgroup were studied. The results indicated that Thamnocalamus spathiflorus var. crassinodus and the Fargesia spathacea clade form the basal groups but bootstrap support was weak. Among the rest of the species, including species previously placed in Fargesia (plus Borinda) and Yushania, the F. yunnanensis subclade and the F. communis subclade were recognized but internal support for such groups was again low. The result indicated that, Fargesia and Yushania as delimited by morphological characters, are not monophyletic in the ITS phylogeny and require further resolution. We revealed relatively high levels of genetic variability in the alpine bamboos and showed that the ITS region could be used to improve generic delimitation of the woody bamboos in general.
出版日期: 2001-09-01
卷号: 114, 期号:1115, 页码:315-322
语种: 英语
收录类别: SCI
学科分类: Plant Sciences
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/11231
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.Acad Sinica, Kunming Inst Bot, Lab Plant Biodivers & Biogeog, Kunming 650204, Yunnan, Peoples R China

Recommended Citation:
Guo, ZH; Chen, YY; Li, DZ; Yang, JB.Genetic variation and evolution of the alpine bamboos (Poaceae : Bambusoideae) using DNA sequence data,JOURNAL OF PLANT RESEARCH,2001,114(1115):315-322
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