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学科主题: Zoology
题名: Phylogeny of the specialized schizothoracine fishes (Teleostei : Cypriniformes : Cyprinidae)
作者: Chen, ZM; Chen, YF
通讯作者: Chen, YF, Chinese Acad Sci, Inst Hydrobiol, Hubei 430072, Peoples R China
关键词: Cyprinidae ; specialized schizothoracine fishes ; character analysis ; phylogenetic relationships ; Tibetan plateau
刊名: ZOOLOGICAL STUDIES
发表日期: 2001-04-01
卷: 40, 期:2, 页:147-157
收录类别: SCI
文章类型: Article
部门归属: Chinese Acad Sci, Inst Hydrobiol, Hubei 430072, Peoples R China; Chinese Acad Sci, Kunming Inst Zool, Yunnan 650223, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Zoology
研究领域[WOS]: Zoology
摘要: Phylogeny of the specialized schizothoracine fishes (Teleostei: Cypriniformes: Cyprinidae). Zoological Studies 40(2). 147-157. To elucidate phylogenetic relationships within the specialized schizothoracine fishes, we used 41 variable osteological and external characters among this groups, three species of Schizothorax, and 1 fossil species. When the 3 species of Schizothorax were designated as an outgroup and all 41 characters were set as unordered with equal weighting, the data matrix yielded a single most-parsimonious tree with a tree length of 71 steps, a consistency index of 0.6761, and a retention index of 0.7416. Meanwhile, a bootstrap test was conducted to verify the reliability of the results. The matrix was also analyzed for different conditions: all characters were ordered and the fossil species was added as an outgroup. The phylogenetic analyses presented herein support the following hypotheses. 1) All species of the specialized schizo-thoracines fishes form a monophyletic group. 2) Monophyly of the genus Ptychobarbus is not supported by the bootstrap test or when these characters are ordered. 3) The genus Gymnodiptychus forms a monophyletic group. 4) All species of Ptychobarbus and Gymnodiptychus form a monophyletic group with Diptychus as its sister group.
英文摘要: Phylogeny of the specialized schizothoracine fishes (Teleostei: Cypriniformes: Cyprinidae). Zoological Studies 40(2). 147-157. To elucidate phylogenetic relationships within the specialized schizothoracine fishes, we used 41 variable osteological and external characters among this groups, three species of Schizothorax, and 1 fossil species. When the 3 species of Schizothorax were designated as an outgroup and all 41 characters were set as unordered with equal weighting, the data matrix yielded a single most-parsimonious tree with a tree length of 71 steps, a consistency index of 0.6761, and a retention index of 0.7416. Meanwhile, a bootstrap test was conducted to verify the reliability of the results. The matrix was also analyzed for different conditions: all characters were ordered and the fossil species was added as an outgroup. The phylogenetic analyses presented herein support the following hypotheses. 1) All species of the specialized schizo-thoracines fishes form a monophyletic group. 2) Monophyly of the genus Ptychobarbus is not supported by the bootstrap test or when these characters are ordered. 3) The genus Gymnodiptychus forms a monophyletic group. 4) All species of Ptychobarbus and Gymnodiptychus form a monophyletic group with Diptychus as its sister group.
关键词[WOS]: OUTGROUP
语种: 英语
WOS记录号: WOS:000169030400008
ISSN号: 1021-5506
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/9986
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Hubei 430072, Peoples R China
2.Chinese Acad Sci, Kunming Inst Zool, Yunnan 650223, Peoples R China

Recommended Citation:
Jian Yang & Xiaoyong Chen & Junxing Yang.Phylogeny of the specialized schizothoracine fishes (Teleostei : Cypriniformes : Cyprinidae),ZOOLOGICAL STUDIES,2001,40(2):147-157
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