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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, Yang1,2,3; Zhan, Zifeng1,2,3; Xu, Kuidong1,2,3,4
2020-09-17
Source PublicationFRONTIERS IN MARINE SCIENCE
Volume7Pages:24
Corresponding AuthorXu, Kuidong(kxu@qdio.ac.cn)
AbstractMembers 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.
KeywordVictorgorgia gorgonians Scleraxonia Alcyonacea cnidaria new species biodiversity seamount
DOI10.3389/fmars.2020.00701
Indexed BySCI
Language英语
Funding ProjectScience AMP; Technology Basic Resources Investigation Program of China[2017FY100804] ; National Natural Science Foundation of China[41930533] ; National Natural Science Foundation of China[31970489]
WOS Research AreaEnvironmental Sciences & Ecology ; Marine & Freshwater Biology
WOS SubjectEnvironmental Sciences ; Marine & Freshwater Biology
WOS IDWOS:000573899800001
PublisherFRONTIERS MEDIA SA
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/168856
Collection海洋生物分类与系统演化实验室
Corresponding AuthorXu, Kuidong
Affiliation1.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
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Recommended Citation
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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