Reconsideration of Phylogenetic Relationships of the Subclass Peritrichia (Ciliophora, Oligohymenophorea) Based on Small Subunit Ribosomal RNA Gene Sequences, with the Establishment of a New Subclass Mobilia Kahl, 1933
文献类型：期刊论文
| 作者 | Zhan, Zifeng1; Xu, Kuidong1; Warren, Alan2; Gong, Yingchun3 |
| 刊名 | JOURNAL OF EUKARYOTIC MICROBIOLOGY
 |
| 出版日期 | 2009-11-01 |
| 卷号 | 56期号:6页码:552-558 |
| 关键词 | Mobilida molecular systematics Peritrichida Sessilida Trichodina Urceolaria urechi |
| ISSN号 | 1066-5234 |
| 通讯作者 | Xu, KD, Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China |
| 中文摘要 | Based on its characteristic oral apparatus, the ciliate subclass Peritrichia has long been recognized as a monophyletic assemblage composed of the orders Mobilida and Sessilida. Following the application of molecular methods, the monophyly of Peritrichia has recently been questioned. We investigated the phylogenetic relationships of the peritrichous ciliates based on four further complete small subunit ribosomal RNA sequences of mobilids, namely Urceolaria urechi, Trichodina meretricis, Trichodina sinonovaculae, and Trichodina ruditapicis. In all phylogenetic trees, the mobilids never clustered with the sessilids, but instead formed a monophyletic assemblage related to the peniculines. By contrast, the sessilids formed a sister clade with the hymenostomes at a terminal position within the Oligohymenophorea. We therefore formally separate the mobilids from the sessilids (Peritrichia sensu stricto) and establish a new subclass, Mobilia Kahl, 1933, which contains the order Mobilida Kahl, 1933. We argue that the oral apparatus in the mobilians and sessilid peritrichs is a homoplasy, probably due to convergent evolution driven by their similar life-styles and feeding strategies. Morphologically, the mobilians are distinguished from all other oligohymenophoreans by the presence of the adhesive disc, this character being a synapomorphy for the Mobilia. |
| 英文摘要 | Based on its characteristic oral apparatus, the ciliate subclass Peritrichia has long been recognized as a monophyletic assemblage composed of the orders Mobilida and Sessilida. Following the application of molecular methods, the monophyly of Peritrichia has recently been questioned. We investigated the phylogenetic relationships of the peritrichous ciliates based on four further complete small subunit ribosomal RNA sequences of mobilids, namely Urceolaria urechi, Trichodina meretricis, Trichodina sinonovaculae, and Trichodina ruditapicis. In all phylogenetic trees, the mobilids never clustered with the sessilids, but instead formed a monophyletic assemblage related to the peniculines. By contrast, the sessilids formed a sister clade with the hymenostomes at a terminal position within the Oligohymenophorea. We therefore formally separate the mobilids from the sessilids (Peritrichia sensu stricto) and establish a new subclass, Mobilia Kahl, 1933, which contains the order Mobilida Kahl, 1933. We argue that the oral apparatus in the mobilians and sessilid peritrichs is a homoplasy, probably due to convergent evolution driven by their similar life-styles and feeding strategies. Morphologically, the mobilians are distinguished from all other oligohymenophoreans by the presence of the adhesive disc, this character being a synapomorphy for the Mobilia. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | Microbiology |
| 类目[WOS] | Microbiology |
| 研究领域[WOS] | Microbiology |
| 关键词[WOS] | TRICHODINID ECTOPARASITES CILIOPHORA ; PEDICULUS CILIOPHORA ; MAXIMUM-LIKELIHOOD ; MORPHOLOGY ; EHRENBERG ; INFERENCE ; SESSILIDA ; MOLLUSKS ; PROTOZOA ; GILLS |
| 收录类别 | SCI |
| 资助信息 | Chinese Academy of Sciences [KZCX2-YW-417]; National Natural Science Foundation of China [40576072] |
| 语种 | 英语 |
| WOS记录号 | WOS:000271188700006 |
| 公开日期 | 2010-10-13 |
| 源URL | [http://ir.ihb.ac.cn/handle/152342/7534]  |
| 专题 | 水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Nat Hist Museum, Dept Zool, London SW7 5BD, England 3.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhan, Zifeng,Xu, Kuidong,Warren, Alan,et al. Reconsideration of Phylogenetic Relationships of the Subclass Peritrichia (Ciliophora, Oligohymenophorea) Based on Small Subunit Ribosomal RNA Gene Sequences, with the Establishment of a New Subclass Mobilia Kahl, 1933[J]. JOURNAL OF EUKARYOTIC MICROBIOLOGY,2009,56(6):552-558. |
| APA | Zhan, Zifeng,Xu, Kuidong,Warren, Alan,&Gong, Yingchun.(2009).Reconsideration of Phylogenetic Relationships of the Subclass Peritrichia (Ciliophora, Oligohymenophorea) Based on Small Subunit Ribosomal RNA Gene Sequences, with the Establishment of a New Subclass Mobilia Kahl, 1933.JOURNAL OF EUKARYOTIC MICROBIOLOGY,56(6),552-558. |
| MLA | Zhan, Zifeng,et al."Reconsideration of Phylogenetic Relationships of the Subclass Peritrichia (Ciliophora, Oligohymenophorea) Based on Small Subunit Ribosomal RNA Gene Sequences, with the Establishment of a New Subclass Mobilia Kahl, 1933".JOURNAL OF EUKARYOTIC MICROBIOLOGY 56.6(2009):552-558. |
入库方式： OAI收割
来源：水生生物研究所
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