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学科主题: Multidisciplinary Sciences
题名: Bayesian mixed models and divergence time estimation of Chinese cavefishes (Cyprinidae : Sinocyclocheilus)
作者: Li ZhiQiang1, 2; Guo BaoCheng1, 2; Li JunBing1, 2; He ShunPing1; Chen Yiyu1
通讯作者: He, SP, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
关键词: Sinocyclocheilus ; phylogeny ; relaxed molecular clock
刊名: CHINESE SCIENCE BULLETIN
发表日期: 2008-08-01
DOI: 10.1007/s11434-008-0297-2
卷: 53, 期:15, 页:2342-2352
收录类别: SCI
文章类型: Article
部门归属: [Li ZhiQiang; Guo BaoCheng; Li JunBing; He ShunPing; Chen Yiyu] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Li ZhiQiang; Guo BaoCheng; Li JunBing] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
摘要: The genus Sinocyclocheilus is distributed in Yun-Gui Plateau and its surrounding region only, within more than 10 cave species showing different degrees of degeneration of eyes and pigmentation with wonderful adaptations. To present, published morphological and molecular phylogenetic hypotheses of Sinocyclocheilus from prior works are very different and the relationships within the genus are still far from clear. We obtained the sequences of cytochrome b (cyt b) and NADH dehydrogenase subunit 4 (ND4) of 34 species within Sinocyclocheilus, which represent the most dense taxon sampling to date. We performed Bayesian mixed models analyses with this data set. Under this phylogenetic framework, we estimated the divergence times of recovered clades using different methods under relaxed molecular clock. Our phyloegentic results supported the monophyly of Sinocyclocheilus and showed that this genus could be subdivided into 6 major clades. In addition, an earlier finding demonstrating the polyphyletic of cave species and the most basal position of S. jii was corroborated. Relaxed divergence-time estimation suggested that Sinocyclocheilus originated at the late Miocene, about 11 million years ago (Ma), which is older than what have been assumed.
英文摘要: The genus Sinocyclocheilus is distributed in Yun-Gui Plateau and its surrounding region only, within more than 10 cave species showing different degrees of degeneration of eyes and pigmentation with wonderful adaptations. To present, published morphological and molecular phylogenetic hypotheses of Sinocyclocheilus from prior works are very different and the relationships within the genus are still far from clear. We obtained the sequences of cytochrome b (cyt b) and NADH dehydrogenase subunit 4 (ND4) of 34 species within Sinocyclocheilus, which represent the most dense taxon sampling to date. We performed Bayesian mixed models analyses with this data set. Under this phylogenetic framework, we estimated the divergence times of recovered clades using different methods under relaxed molecular clock. Our phyloegentic results supported the monophyly of Sinocyclocheilus and showed that this genus could be subdivided into 6 major clades. In addition, an earlier finding demonstrating the polyphyletic of cave species and the most basal position of S. jii was corroborated. Relaxed divergence-time estimation suggested that Sinocyclocheilus originated at the late Miocene, about 11 million years ago (Ma), which is older than what have been assumed.
关键词[WOS]: PHYLOGENETIC-RELATIONSHIPS ; MOLECULAR EVOLUTION ; SEQUENCE ALIGNMENT ; BLIND CAVEFISH ; ABSOLUTE RATES ; LIKELIHOOD ; CYPRINIFORMES ; TELEOSTEI ; INFERENCE ; LIZARDS
语种: 英语
WOS记录号: WOS:000258384800009
ISSN号: 1001-6538
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/8044
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, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Li ZhiQiang; Guo BaoCheng; Li JunBing; He ShunPing; Chen Yiyu.Bayesian mixed models and divergence time estimation of Chinese cavefishes (Cyprinidae : Sinocyclocheilus),CHINESE SCIENCE BULLETIN,2008,53(15):2342-2352
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