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学科主题: Microbiology
题名: Reevaluation of the phylogenetic relationship between Mobilid and Sessilid peritrichs (Ciliophora, Oligohymenophorea) based on small subunit rRNA genes sequences
作者: Gong, Ying-Chun; Yu, Yu-He; Villalobo, Eduardo; Zhu, Fei-Yun; Miao, Wei
通讯作者: Yu, YH, Chinese Acad Sci, Inst Hydrobiol, Lab Taxon & Edol Protozoa, Wuhan 430072, Peoples R China
关键词: adhesive disc ; granule ; Mobilida ; phylogeny ; SSrRNA ; Trichodina ; Trichodinella
刊名: JOURNAL OF EUKARYOTIC MICROBIOLOGY
发表日期: 2006-09-01
DOI: 10.1111/j.1550-7408.2006.00121.x
卷: 53, 期:5, 页:397-403
收录类别: SCI
文章类型: Article
部门归属: Chinese Acad Sci, Inst Hydrobiol, Lab Taxon & Edol Protozoa, Wuhan 430072, Peoples R China; Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China; Univ Sevilla, Fac Biol, Dept Microbiol, E-41012 Seville, Spain
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Microbiology
研究领域[WOS]: Microbiology
摘要: Based on morphological characters, peritrich ciliates (Class Olygohymenophorea, Subclass Peritrichia) have been subdivided into the Orders Sessilida and Mobilida. Molecular phylogenetic studies on peritrichs have been restricted to members of the Order Sessilida. In order to shed more light into the evolutionary relationships within peritrichs, the complete small subunit rRNA (SSU rRNA) sequences of four mobilid species, Trichodina nobilis, Trichodina heterodentata, Trichodina reticulata, and Trichodinella myakkae were used to construct phylogenetic trees using maximum parsimony, neighbor joining, and Bayesian analyses. Whatever phylogenetic method used, the peritrichs did not constitute a monophyletic group: mobilid and sessilid species did not cluster together. Similarity in morphology but difference in molecular data led us to suggest that the oral structures of peritrichs are the result of evolutionary convergence. In addition, Trichodina reticulata, a Trichodina species with granules in the center of the adhesive disc, branched separately from its congeners, Trichodina nobilis and Trichodina heterodentata, trichodinids without such granules. This indicates that granules in the adhesive disc might be a phylogenetic character of high importance within the Family Trichodinidae.
英文摘要: Based on morphological characters, peritrich ciliates (Class Olygohymenophorea, Subclass Peritrichia) have been subdivided into the Orders Sessilida and Mobilida. Molecular phylogenetic studies on peritrichs have been restricted to members of the Order Sessilida. In order to shed more light into the evolutionary relationships within peritrichs, the complete small subunit rRNA (SSU rRNA) sequences of four mobilid species, Trichodina nobilis, Trichodina heterodentata, Trichodina reticulata, and Trichodinella myakkae were used to construct phylogenetic trees using maximum parsimony, neighbor joining, and Bayesian analyses. Whatever phylogenetic method used, the peritrichs did not constitute a monophyletic group: mobilid and sessilid species did not cluster together. Similarity in morphology but difference in molecular data led us to suggest that the oral structures of peritrichs are the result of evolutionary convergence. In addition, Trichodina reticulata, a Trichodina species with granules in the center of the adhesive disc, branched separately from its congeners, Trichodina nobilis and Trichodina heterodentata, trichodinids without such granules. This indicates that granules in the adhesive disc might be a phylogenetic character of high importance within the Family Trichodinidae.
关键词[WOS]: TRICHODINA-PEDICULUS CILIOPHORA ; PHYLUM CILIOPHORA ; SOUTH-AFRICA ; CILIATE ; INFERENCE ; EVOLUTION ; FISH ; TREES ; ECTOPARASITES ; APPARATUS
语种: 英语
WOS记录号: WOS:000240404500012
ISSN号: 1066-5234
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/8846
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, Lab Taxon & Edol Protozoa, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Univ Seville, Fac Biol, Dept Microbiol, E-41012 Seville, Spain

Recommended Citation:
Gong, Ying-Chun; Yu, Yu-He; Villalobo, Eduardo; Zhu, Fei-Yun; Miao, Wei.Reevaluation of the phylogenetic relationship between Mobilid and Sessilid peritrichs (Ciliophora, Oligohymenophorea) based on small subunit rRNA genes sequences,JOURNAL OF EUKARYOTIC MICROBIOLOGY,2006,53(5):397-403
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