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Phylomitogenomic analyses strongly support the sister relationship of the Chaetognatha and Protostomia
Shen, Xin1,2,3; Sun, Song4,5; Zhao, Fang Qing3; Zhang, Guang Tao4,5; Tian, Mei2; Tsang, Ling Ming6; Wang, Jin Feng3; Chu, Ka Hou1
2016-03-01
Source PublicationZOOLOGICA SCRIPTA
Volume45Issue:2Pages:187-199
SubtypeArticle
AbstractThe phylum Chaetognatha (arrow worms) comprises a group of small marine predators that constitute a critical component of the zooplankton community throughout the world's oceans. Various phylogenetic affiliations have been proposed for the Chaetognatha, for which there are at least nine possible phylogenetic positions. Resolving the phylogenetic position of the chaetognaths is a key in understanding the fundamental developmental features of bilaterians. In comparison with the typical gene content of metazoan mitogenomes, two protein-coding genes (atp6 and atp8) are absent from all chaetognaths. The two mitogenomes sequenced from Sagitta crassa and Zonosagitta nagae in this study nevertheless contain two and four tRNA genes, respectively, in contrast to those of the other five chaetognaths reported where only one tRNA gene (trnMet) is present, thus invalidating the view that all chaetognath mitogenomes have a single tRNA gene. A conserved major gene order shared by all chaetognaths could be partially identified in many protostome mitogenomes, but not in any ancestral mitogenome gene arrangement of the four deuterostome groups. Phylogenetic analysis of the deduced amino acid sequences of protein-coding genes from 85 mitogenomes of 19 groups suggests the Chaetognatha to be a sister group to the protostomes, a result consistent with evidences from the developmental pattern and other molecular analyses.
DOI10.1111/zsc.12140
Indexed BySCI
Language英语
WOS IDWOS:000370076300006
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/112463
Collection海洋生态与环境科学重点实验室
Affiliation1.Chinese Univ Hong Kong, Sch Life Sci, Simon FS Li Marine Sci Lab, Shatin, Hong Kong, Peoples R China
2.Huaihai Inst Technol, Jiangsu Key Lab Marine Biotechnol, Coinnovat Ctr Jiangsu Marine Bioind Technol, Lianyungang 222005, Peoples R China
3.Chinese Acad Sci, Beijing Inst Life Sci, Beijing 100101, Peoples R China
4.Chinese Acad Sci, Inst Oceanol, KLMEES, Qingdao 266071, Peoples R China
5.Chinese Acad Sci, Inst Oceanol, JBMERS, Qingdao 266071, Peoples R China
6.Natl Taiwan Ocean Univ, Inst Marine Biol, Keelung 20224, Taiwan
Recommended Citation
GB/T 7714
Shen, Xin,Sun, Song,Zhao, Fang Qing,et al. Phylomitogenomic analyses strongly support the sister relationship of the Chaetognatha and Protostomia[J]. ZOOLOGICA SCRIPTA,2016,45(2):187-199.
APA Shen, Xin.,Sun, Song.,Zhao, Fang Qing.,Zhang, Guang Tao.,Tian, Mei.,...&Chu, Ka Hou.(2016).Phylomitogenomic analyses strongly support the sister relationship of the Chaetognatha and Protostomia.ZOOLOGICA SCRIPTA,45(2),187-199.
MLA Shen, Xin,et al."Phylomitogenomic analyses strongly support the sister relationship of the Chaetognatha and Protostomia".ZOOLOGICA SCRIPTA 45.2(2016):187-199.
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