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题名: Phylogeny and a revised classification of the Chinese species of Nyssa (Nyssaceae) based on morphological and molecular data
作者: Wang, Nian1, 2; Milne, Richard I.3; Jacques, Frederic M. B.4; Sun, Bao-Ling1, 2; Zhang, Chang-Qin1, 2; Vang, Jun-Bo5
刊名: TAXON
出版日期: 2012-04-01
卷号: 61, 期号:2, 页码:344-354
关键词: China ; molecular data ; Nyssa ; PCO ; phylogeny ; taxonomic revision ; UPGMA
文章类型: Article
英文摘要: The taxonomy of Nyssa (Nyssaceae) in China is confused and uncertain due to differing views about how many species should be recognized, and a scarcity of good morphological differential characters. In the present study, we examined 52 morphological characters from up to fifty accessions each of six of the seven species recognized in the Flora of China: N. yunnanensis, N. javanica, N. sinensis, N. shangszeensis, N. shweliensis and N. wenshanensis. Based on both principal coordinate analysis and UPGMA cluster analysis, N. yunnanensis and N. javanica were both morphologically distinct. However, accessions of N. sinensis, N. shangszeensis, N. shweliensis and N. wenshanensis were intermixed in both analyses and could not be discriminated from each other. Sequence data from nuclear ITS and the chloroplast regions trnH-psbA, rps16r-f, trnL-rps32F, trnS-G and trnL-F were used to further analyze the Nyssa species listed above, together with N. aquatica and N. sylvatica from North America. All analyses of the DNA data using maximum parsimony, maximum likelihood and Bayesian methods strongly supported the monophyly of Nyssa. Within Nyssa, N. yunnanensis and N. javanica were resolved as sister species, which were genetically distinct. The other four Chinese taxa were barely differentiated by molecular data, with only N. shangszeensis and N. wenshanensis weakly supported as monophyletic. Hence, based on morphological and molecular data, we recommend that N. shangszeensis, N. shweliensis and N. wenshanensis be reduced to synonyms of N. sinensis, and only N. sinensis, N. yunnanensis and N. javanica be recognized for Flora of China. The American N. aquatica and N. sylvatica were sister species in the cpDNA but not in the ITS analyses, indicating possible reticulate evolution.
类目[WOS]: Plant Sciences ; Evolutionary Biology
研究领域[WOS]: Plant Sciences ; Evolutionary Biology
关键词[WOS]: CHLOROPLAST DNA ; SEQUENCE DATA ; BOOTSTRAP ; CORNACEAE
收录类别: SCI
语种: 英语
WOS记录号: WOS:000305357200006
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/20448
Appears in Collections:资源植物与生物技术所级重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, Kunming Bot Garden, Kunming 650204, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Key Lab Resource Plants & Biotechnol, Kunming 650204, Peoples R China
3.Univ Edinburgh, Inst Mol Plant Sci, Edinburgh EH9 3JH, Midlothian, Scotland
4.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Key Lab Trop Forest Ecol, Menglun 666303, Mengla, Peoples R China
5.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650204, Peoples R China
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文件名: eny and a revised classification of the Chinese species of Nyssa (Nyssaceae) based on morphological and molecular data.pdf
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