Morphology and Molecular Phylogenetic Analysis of Deep-Sea Purple Gorgonians (Octocorallia: Victorgorgiidae) from Seamounts in the Tropical Western Pacific, with Description of Three New Species

doi:10.3389/fmars.2020.00701

	Morphology and Molecular Phylogenetic Analysis of Deep-Sea Purple Gorgonians (Octocorallia: Victorgorgiidae) from Seamounts in the Tropical Western Pacific, with Description of Three New Species
	Li, Yang 1,2,3; Zhan, Zifeng 1,2,3; Xu, Kuidong1,2,3,4
	2020-09-17
发表期刊	FRONTIERS IN MARINE SCIENCE
卷号	7 页码:24
通讯作者	Xu, Kuidong([email protected])
摘要	Members of Scleraxonia Studer, 1887 are one of the most dominant megafaunal taxa on seamounts, but their diversity and spatial distribution are poorly known in the tropical Western Pacific. Among this group, the family Victorgorgiidae Moore et al., 2017 is typically characterized by josephinae clubs in their polyp tentacles and a remarkable purple color but remains one of the most poorly known scleraxonian taxa currently. Victorgorgiidae contains only the genus Victorgorgia Lopez-Gonzalez and Briand, 2002 and six species. Here we describe three new species of Victorgorgia, V. fasciculata sp. nov., V. iocasica sp. nov., V. flabellata sp. nov., and re-describe V. eminens Moore et al., 2017, based on samples collected from four seamounts in the tropical Western Pacific, and evaluate their phylogenetic position using sequence data of mtMutS and COI genes. These new species are distinguished from each other and congeners by the sclerite forms and sizes, colony characters and polyp arrangement, and particularly the sclerites in the polyps and medulla are found to be most informative. Phylogenetic analyses indicate that V. flabellata sp. nov. is the sister group of V. iocasica sp. nov., and V. eminens Moore et al., 2017 showed a close relationship with Victorgorgia sp. GU563313. However, genetic divergence at the species level was found to be inadequate for differentiation of some close species. Each of the four species was found only from a single seamount, suggesting limited biological connectivity among the four seamount gorgoniians. Our study increases our understanding of the species diversity of Victorgorgiidae, and highlights the need for further research on the diversity and zoogeography of the deep-sea gorgonians. V. fasciculata sp. nov. urn:Isid:zoobank.org:act: 6CDEECC5-B96D-4DDF-95D2-32BEC3DBC938. V.iocasica sp. nov. urn:Isid:zoobank.org:act: BB11D217-C298-401F-8E13-849C331303905. V. flabellata sp. nov. urn:Isid:zoobank.org:act: 2COFCCF2-33B1-4C2D-AC8E- 6737079422F4. urn:Isid:zoobank.org:pub: 39AF43F8-C0C2-4670-BBA0-DC1A7F1FA01B.
关键词	Victorgorgia gorgonians Scleraxonia Alcyonacea cnidaria new species biodiversity seamount
DOI	10.3389/fmars.2020.00701
收录类别	SCI
语种	英语
资助项目	Science AMP; Technology Basic Resources Investigation Program of China[2017FY100804]; National Natural Science Foundation of China[41930533]; National Natural Science Foundation of China[31970489]
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS类目	Environmental Sciences ; Marine & Freshwater Biology
WOS记录号	WOS:000573899800001
出版者	FRONTIERS MEDIA SA
引用统计	被引频次：5[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/337002/168856
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, Lab Marine Organism Taxon & Phylogeny, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China 4.Univ Chinese Acad Sci, Coll Marine Sci, Beijing, Peoples R China
第一作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
通讯作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
推荐引用方式 GB/T 7714	Li, Yang,Zhan, Zifeng,Xu, Kuidong. Morphology and Molecular Phylogenetic Analysis of Deep-Sea Purple Gorgonians (Octocorallia: Victorgorgiidae) from Seamounts in the Tropical Western Pacific, with Description of Three New Species[J]. FRONTIERS IN MARINE SCIENCE,2020,7:24.
APA	Li, Yang,Zhan, Zifeng,&Xu, Kuidong.(2020).Morphology and Molecular Phylogenetic Analysis of Deep-Sea Purple Gorgonians (Octocorallia: Victorgorgiidae) from Seamounts in the Tropical Western Pacific, with Description of Three New Species.FRONTIERS IN MARINE SCIENCE,7,24.
MLA	Li, Yang,et al."Morphology and Molecular Phylogenetic Analysis of Deep-Sea Purple Gorgonians (Octocorallia: Victorgorgiidae) from Seamounts in the Tropical Western Pacific, with Description of Three New Species".FRONTIERS IN MARINE SCIENCE 7(2020):24.

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