| Systematics and Molecular Phylogeny of the Ciliate Genus Pseudokeronopsis (Ciliophora, Hypotrichia) | |
Li, Ju1 ; Zhan, Zifeng1; Xu, Kuidong1,2,3
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| 2017-11-01 | |
| 发表期刊 | JOURNAL OF EUKARYOTIC MICROBIOLOGY
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| 卷号 | 64期号:6页码:850-872 |
| 文章类型 | Article |
| 摘要 | A still challenging study on ciliate systematics is to clarify the taxonomic and phylogenetic confusions of the fascinating pigmented Pseudokeronopsis species because of their high interspecific similarities. We evaluated the identities and internal relationships within Pseudokeronopsis based on morphological descriptions in combination with the 18S and ITS-5.8S rDNA genetic distances, ITS2 secondary structures and phylogenetic analyses. Results showed that (1) Pseudokeronopsis pararubra, a species ever synonymized as Pseudokeronopsis carnea, is a valid species; (2) most Chinese populations identified as Pseudokeronopsis rubra represent a new species namely Pseudokeronopsis songi sp. nov.; (3) within Pseudokeronopsis, P. carnea branched early, while P. songi sp. nov., P. flava, and P. erythrina showed close relationships and formed a sister clade with P. pararubra; (4) compared to 18S and ITS2 rDNA, ITS-5.8S rDNA is more suitable for separating Pseudokeronopsis species, with pairwise distances of 0-0.0441 at the intraspecific level and 0.0635-0.1150 at the interspecific level; and (5) the core structure of Pseudokeronopsis ITS2 includes three helices, with helix III being the longest and showing an identical pattern in conspecific populations and small differences among species. Based on the evaluation, we clarify all misidentified and dubious 18S and ITS-5.8S rDNA sequences of Pseudokeronopsis in GenBank. |
| 关键词 | Multiloci New Species Revision Secondary Structure Taxonomy Urostylid |
| DOI | 10.1111/jeu.12420 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000415179600012 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/143078 |
| 专题 | 海洋生物标本馆 海洋生物分类与系统演化实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Dept Marine Organism Taxon & Phylogeny, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Ju,Zhan, Zifeng,Xu, Kuidong. Systematics and Molecular Phylogeny of the Ciliate Genus Pseudokeronopsis (Ciliophora, Hypotrichia)[J]. JOURNAL OF EUKARYOTIC MICROBIOLOGY,2017,64(6):850-872. |
| APA | Li, Ju,Zhan, Zifeng,&Xu, Kuidong.(2017).Systematics and Molecular Phylogeny of the Ciliate Genus Pseudokeronopsis (Ciliophora, Hypotrichia).JOURNAL OF EUKARYOTIC MICROBIOLOGY,64(6),850-872. |
| MLA | Li, Ju,et al."Systematics and Molecular Phylogeny of the Ciliate Genus Pseudokeronopsis (Ciliophora, Hypotrichia)".JOURNAL OF EUKARYOTIC MICROBIOLOGY 64.6(2017):850-872. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Systematics and Mole（3246KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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