Insights into the phylogeny of three systematically controversial subfamilies of urostylid ciliates based on rDNA

doi:10.1111/zsc.12473

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋生物分类与系统演化实验室

	Insights into the phylogeny of three systematically controversial subfamilies of urostylid ciliates based on rDNA
	Chen, Xumiao 2,4,5; Li, Ju 3,5; Xu, Kuidong 1,2,4,5
刊名	ZOOLOGICA SCRIPTA
	2021-01-21
页码	13
ISSN号	0300-3256
DOI	10.1111/zsc.12473
通讯作者	Xu, Kuidong(kxu@qdio.ac.cn)
英文摘要	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.
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
语种	英语
出版者	WILEY
WOS记录号	WOS:000609382700001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/169715]
专题	海洋研究所_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.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China 3.Qingdao Marine Prod Museum, Qingdao, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, Dept Marine Organism Taxon & Phylogeny, 7 Nanhai Rd, Qingdao 266071, Peoples R China
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.