| Insights into the phylogeny of three systematically controversial subfamilies of urostylid ciliates based on rDNA | |
Chen, Xumiao1,2,3 ; Li, Ju1,4; Xu, Kuidong1,2,3,5
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| 2021-01-21 | |
| 发表期刊 | ZOOLOGICA SCRIPTA
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| ISSN | 0300-3256 |
| 页码 | 13 |
| 通讯作者 | Xu, Kuidong(kxu@qdio.ac.cn) |
| 摘要 | The family Pseudokeronopsidae Borror & Wicklow, 1983 has an extensive history of iterative revisions regarding phylogenetic relationships of its members and some related taxa from the order Urostylida. The accumulation of morphological and multigene data has provided the opportunity to gain a more comprehensive understanding of their systematic and evolutionary relationship. We conducted phylogenetic analyses of multiple molecular markers and predicted secondary structures of SSU rRNA and ITS regions by adding 14 new sequences. The results demonstrate that: (1) all the present phylogenetic analyses support the transfer of the subfamily Thigmokeronopsinae from the family Pseudokeronopsidae to the family Urostylidae; (2) the monophyly of two subfamilies Pseudokeronopsinae and Nothoholostichinae is substantiated with high support values of the SSU rDNA, LSU rDNA and the concatenated rDNA loci; (3) the monophyly of Pseudokeronopsidae is substantiated of the LSU rDNA only, and the AU tests do not reject the possibilities of Anteholosticha pulchra in this family; (4) phylogenetic trees based on the ITS region do not support the monophylies of the Pseudokeronopsidae and Nothoholostichinae, but the AU tests do not reject their possibilities; and (5) even though Pseudokeronopsis is morphologically well-defined, it is very likely a paraphyletic genus in which both Antiokeronopsis and Uroleptopsis could be included. Moreover, this study reveals that the V2 and V4 regions of the SSU rRNA molecule are rather conserved at genus level and could be used to distinguish different subfamilies and families. Although they are less stable than the Watson-Crick complementarities, the GU appositions often occur in the ITS transcripts, which are much more variable at genus level than the V2 and V4 regions of the SSU rRNA molecule. |
| DOI | 10.1111/zsc.12473 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | Natural Science Foundation of Shandong Province[ZR2019QD015] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB42000000] ; National Natural Science Foundation of China[41876171] ; National Natural Science Foundation of China[41476144] |
| WOS研究方向 | Evolutionary Biology ; Zoology |
| WOS类目 | Evolutionary Biology ; Zoology |
| WOS记录号 | WOS:000609382700001 |
| 出版者 | WILEY |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/169716 |
| 专题 | 海洋生物分类与系统演化实验室 |
| 通讯作者 | Xu, Kuidong |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Dept Marine Organism Taxon & Phylogeny, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China 4.Qingdao Marine Prod Museum, Qingdao, Peoples R China 5.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 通讯作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Chen, Xumiao,Li, Ju,Xu, Kuidong. Insights into the phylogeny of three systematically controversial subfamilies of urostylid ciliates based on rDNA[J]. ZOOLOGICA SCRIPTA,2021:13. |
| APA | Chen, Xumiao,Li, Ju,&Xu, Kuidong.(2021).Insights into the phylogeny of three systematically controversial subfamilies of urostylid ciliates based on rDNA.ZOOLOGICA SCRIPTA,13. |
| MLA | Chen, Xumiao,et al."Insights into the phylogeny of three systematically controversial subfamilies of urostylid ciliates based on rDNA".ZOOLOGICA SCRIPTA (2021):13. |
| 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 | ||
| zsc.12473.pdf（2749KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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