Taxonomy and phylogeny of Tunicothrix (Ciliophora, Stichotrichia), with the description of two novel species, Tunicothrix brachysticha n. sp and Tunicothrix multinucleata n. sp., and the establishment of Parabirojimidae n. fam.

doi:10.1099/ijs.0.024463-0

	Taxonomy and phylogeny of Tunicothrix (Ciliophora, Stichotrichia), with the description of two novel species, Tunicothrix brachysticha n. sp and Tunicothrix multinucleata n. sp., and the establishment of Parabirojimidae n. fam.
	Dai, Renhai 1,2; Xu, Kuidong1 ; Xu, KD (reprint author), Chinese Acad Sci, Inst Oceanol, Dept Marine Organism Taxon & Phylogeny, Qingdao 266071, Peoples R China
	2011-06-01
发表期刊	INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
ISSN	1466-5026
卷号	61 期号:Part 6 页码:1487-1496
文章类型	Article
摘要	The morphology and molecular phylogeny of two novel urostylid ciliates, Tunicothrix brachysticha n. sp. and Tunicothrix multinucleata n. sp., were investigated using the techniques of living observation, protargol impregnation and small-subunit rRNA gene sequencing. Both species were found to be frequent in muddy-sand sediment but very rare in sandy sediment of the intertidal zone of Qingdao Bay, China. Tunicothrix brachysticha is about 90 x 30 mu m in vivo, with a broadly elevate body shape, and is characterized by a rather short midventral row terminating at 40 % of the body length and a right marginal row 1 terminating at mid-body. Tunicothrix multinucleata is about 190 x 30 mu m in vivo, and is characterized by a clavate body shape and the presence of 7-10 macronuclear nodules. Phylogenetic analyses showed that Tunicothrix clustered robustly with Parabirojimia, forming a clade that branches from the Urostylida core clade with high bootstrap values. Based on the morphological and molecular data, we establish a new family, Parabirojimidae n. fam., which comprises Parabirojimia and Tunicothrix and is distinguished by a unique, roughly T-shaped bipartite adoral zone of membranelles, three enlarged frontal cirri and a midventral complex with midventral pairs confined to the buccal field.; The morphology and molecular phylogeny of two novel urostylid ciliates, Tunicothrix brachysticha n. sp. and Tunicothrix multinucleata n. sp., were investigated using the techniques of living observation, protargol impregnation and small-subunit rRNA gene sequencing. Both species were found to be frequent in muddy-sand sediment but very rare in sandy sediment of the intertidal zone of Qingdao Bay, China. Tunicothrix brachysticha is about 90 x 30 mu m in vivo, with a broadly elevate body shape, and is characterized by a rather short midventral row terminating at 40 % of the body length and a right marginal row 1 terminating at mid-body. Tunicothrix multinucleata is about 190 x 30 mu m in vivo, and is characterized by a clavate body shape and the presence of 7-10 macronuclear nodules. Phylogenetic analyses showed that Tunicothrix clustered robustly with Parabirojimia, forming a clade that branches from the Urostylida core clade with high bootstrap values. Based on the morphological and molecular data, we establish a new family, Parabirojimidae n. fam., which comprises Parabirojimia and Tunicothrix and is distinguished by a unique, roughly T-shaped bipartite adoral zone of membranelles, three enlarged frontal cirri and a midventral complex with midventral pairs confined to the buccal field.
学科领域	Microbiology
DOI	10.1099/ijs.0.024463-0
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000292349500040
引用统计	被引频次：14[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/337002/11419
专题	海洋生物分类与系统演化实验室
通讯作者	Xu, KD (reprint author), Chinese Acad Sci, Inst Oceanol, Dept Marine Organism Taxon & Phylogeny, Qingdao 266071, Peoples R China
作者单位	1.Chinese Acad Sci, Inst Oceanol, Dept Marine Organism Taxon & Phylogeny, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Dai, Renhai,Xu, Kuidong,Xu, KD . Taxonomy and phylogeny of Tunicothrix (Ciliophora, Stichotrichia), with the description of two novel species, Tunicothrix brachysticha n. sp and Tunicothrix multinucleata n. sp., and the establishment of Parabirojimidae n. fam.[J]. INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY,2011,61(Part 6):1487-1496.
APA	Dai, Renhai,Xu, Kuidong,&Xu, KD .(2011).Taxonomy and phylogeny of Tunicothrix (Ciliophora, Stichotrichia), with the description of two novel species, Tunicothrix brachysticha n. sp and Tunicothrix multinucleata n. sp., and the establishment of Parabirojimidae n. fam..INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY,61(Part 6),1487-1496.
MLA	Dai, Renhai,et al."Taxonomy and phylogeny of Tunicothrix (Ciliophora, Stichotrichia), with the description of two novel species, Tunicothrix brachysticha n. sp and Tunicothrix multinucleata n. sp., and the establishment of Parabirojimidae n. fam.".INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY 61.Part 6(2011):1487-1496.

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