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Multigene-based phylogeny analyses of the controversial family Condylostomatidae (Ciliophora, Heterotrichea)
Chen, Xumiao1,2; Li, Ju1; Xu, Kuidong1,2,3
2019-09-24
发表期刊ZOOLOGICA SCRIPTA
ISSN0300-3256
页码15
通讯作者Xu, Kuidong(kxu@qdio.ac.cn)
摘要Condylostoma, the type genus of the family Condylostomatidae, is a well-known and taxonomically confusing genus with more than 30 nominal species. The phylogenetic relationships among congeners and related genera remain obscure despite the continuous discovery of new species and detailed redescription of known species over the past decades. Based on a total of 24 new sequences obtained from nine Condylostoma isolates, we conducted phylogenetic analyses by combining multiple marker genes. The molecular phylogenetic trees indicate that: (a) the monophyly of the family Condylostomatidae is supported by the rDNA locus and SSU rDNA sequences with high support value but is no longer sustained by both the ITS1-5.8S-ITS2 and LSU rDNA sequences; (b) Condylostoma is very likely a paraphyletic genus, and the possibility that it is a polyphyletic group cannot be denied, and (c) the genera Condylostentor and Chattonidium are suggested to evolve from a radiation of Condylostoma species. Furthermore, in an effort to provide better resolutions for understanding the evolutionary relationships of condylostomatids, the secondary structures of the variable regions 2 and 4 (V2 and V4) of SSU rDNA and ITS2 transcripts are predicted. The results revealed that the V2 and V4 structures are rather conserved at the genus level, while the ITS2 structures are much more variable.
关键词Ciliophora Condylostomatidae multigene-phylogeny rDNA secondary structure
DOI10.1111/zsc.12383
收录类别SCI
语种英语
资助项目National Natural Science Foundation of China[41876171] ; National Natural Science Foundation of China[31401954] ; National Natural Science Foundation of China[41476144] ; National Natural Science Foundation of China[41876171] ; National Natural Science Foundation of China[31401954] ; 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:000488080800001
出版者WILEY
引用统计
被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/163444
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, Shandong, Peoples R China
2.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Biol & Biotechnol, Qingdao, Shandong, Peoples R China
3.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
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Chen, Xumiao,Li, Ju,Xu, Kuidong. Multigene-based phylogeny analyses of the controversial family Condylostomatidae (Ciliophora, Heterotrichea)[J]. ZOOLOGICA SCRIPTA,2019:15.
APA Chen, Xumiao,Li, Ju,&Xu, Kuidong.(2019).Multigene-based phylogeny analyses of the controversial family Condylostomatidae (Ciliophora, Heterotrichea).ZOOLOGICA SCRIPTA,15.
MLA Chen, Xumiao,et al."Multigene-based phylogeny analyses of the controversial family Condylostomatidae (Ciliophora, Heterotrichea)".ZOOLOGICA SCRIPTA (2019):15.
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