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学科主题: Marine & Freshwater Biology; Oceanography
题名: Molecular systematics of medusae in the genus Craspedacusta (Cnidaria: Hydrozoa: Limnomedusae) in China with the reference to the identity of species
作者: Zhang, Li Q.1; Wang, Gui T.1; Yao, Wei J.1; Li, Wen X.1; Gao, Qian1
通讯作者: Gao, Q, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
关键词: INTERNAL TRANSCRIBED SPACERS ; FRESH-WATER JELLYFISH ; SOWERBYI ; SCLERACTINIA ; ECOLOGY ; WORLD ; RDNA ; PREY ; DNA
刊名: JOURNAL OF PLANKTON RESEARCH
发表日期: 2009-05-01
DOI: 10.1093/plankt/fbp005
卷: 31, 期:5, 页:563-570
收录类别: SCI
文章类型: Article
部门归属: [Zhang, Li Q.; Wang, Gui T.; Yao, Wei J.; Li, Wen X.; Gao, Qian] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
资助者: Science and Research Foundation of Three Gorges Project Construction Committee of the State Council of China [SX2002-009]
类目[WOS]: Marine & Freshwater Biology ; Oceanography
研究领域[WOS]: Marine & Freshwater Biology ; Oceanography
摘要: The objective of this study was to illustrate the phylogenetic relationship of the species in the genus Craspedacusta in China. The medusae samples were collected at 28 localities in China representing seven described species with their entire ITS region (the contiguous sequences of ITS-1, 5.8S and ITS-2 rDNA) rDNA sequences cloned. Among the 28 samples, the range of sequence variation in the complete ITS and 5.8S region was between 0 and 36.2%. Three main clades were revealed by both maximum likelihood and neighbour-joining trees, with sequence difference of 0-0.9, 0-3.7 and 0.1-1.5% in the three clades. The nesting of C. xinyangensis representatives within C. sowerbii, C. brevinema within C. sinensis and C. sichuanensis within C. kiatingi is strongly supported, with interspecific sequence divergence of 0-0.9, 0.1-1.4 and 0.0-0.4%, respectively. Thus, it is suggested that C. xinyangensis should be the synonym of C. sowerbii, C. sichuanensis the synonym of C. kiatingi and C. brevinema the synonym of C. sinensis. However, the taxonomic status of C. ziguiensis is still uncertain. According to the tree topology, C. kiatingi was closer to C. sowerbii than to C. sinensis. Craspedacusta sinensis was the most genetically distinct from distance matrix values, and located at the base of the phylogenetic trees, so it can be speculated that the C. sinensis may be the ancestral form in the genus Craspedacusta.
英文摘要: The objective of this study was to illustrate the phylogenetic relationship of the species in the genus Craspedacusta in China. The medusae samples were collected at 28 localities in China representing seven described species with their entire ITS region (the contiguous sequences of ITS-1, 5.8S and ITS-2 rDNA) rDNA sequences cloned. Among the 28 samples, the range of sequence variation in the complete ITS and 5.8S region was between 0 and 36.2%. Three main clades were revealed by both maximum likelihood and neighbour-joining trees, with sequence difference of 0-0.9, 0-3.7 and 0.1-1.5% in the three clades. The nesting of C. xinyangensis representatives within C. sowerbii, C. brevinema within C. sinensis and C. sichuanensis within C. kiatingi is strongly supported, with interspecific sequence divergence of 0-0.9, 0.1-1.4 and 0.0-0.4%, respectively. Thus, it is suggested that C. xinyangensis should be the synonym of C. sowerbii, C. sichuanensis the synonym of C. kiatingi and C. brevinema the synonym of C. sinensis. However, the taxonomic status of C. ziguiensis is still uncertain. According to the tree topology, C. kiatingi was closer to C. sowerbii than to C. sinensis. Craspedacusta sinensis was the most genetically distinct from distance matrix values, and located at the base of the phylogenetic trees, so it can be speculated that the C. sinensis may be the ancestral form in the genus Craspedacusta.
关键词[WOS]: INTERNAL TRANSCRIBED SPACERS ; FRESH-WATER JELLYFISH ; SOWERBYI ; SCLERACTINIA ; ECOLOGY ; WORLD ; RDNA ; PREY ; DNA
语种: 英语
WOS记录号: WOS:000265098100009
ISSN号: 0142-7873
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/7782
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, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China

Recommended Citation:
Zhang, Li Q.; Wang, Gui T.; Yao, Wei J.; Li, Wen X.; Gao, Qian.Molecular systematics of medusae in the genus Craspedacusta (Cnidaria: Hydrozoa: Limnomedusae) in China with the reference to the identity of species,JOURNAL OF PLANKTON RESEARCH,2009,31(5):563-570
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