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A new deep-sea hydroid (Cnidaria: Hydrozoa) from the Bering Sea Basin reveals high genetic relevance to Arctic and adjacent shallow-water species
Song, Xikun1,2,3; Gravili, Cinzia4; Wang, Jianjun5; Deng, Yacheng6; Wang, Yongqiang1,2; Fang, Lu6; Lin, Heshan5; Wang, Shaoqing1,2; Zheng, Yiting6; Lin, Junhui5
2016-03-01
发表期刊POLAR BIOLOGY
卷号39期号:3页码:461-471
文章类型Article
摘要The marine benthic fauna in Arctic shallow-water is reported to be a relatively young assemblage by species of either Pacific or Atlantic affinity. Whether current deep-sea Pacific species are included in the affinity or not is unknown. Combining morphological comparisons and genetic analyses, a new deep-sea hydroid to science, Sertularia xuelongi sp. nov. (Cnidaria: Hydrozoa: Sertulariidae), is described from the northern margin of the Bering Sea Basin at depths of 800-1570 m collected in 2010. It is characterized by slender and zigzag-shaped hydrocauli, alternately arranged hydrothecae and the absence of distal-lateral horns in fully matured female gonothecae. Its distribution, currently known only from Bering Sea Basin, suggests that it could not be an Arctic species with Pacific affinity. However, phylogenetic analyses based on the mitochondrial 16S rRNA gene show that it is clustered into a distinctive clade with four closely related species recorded from shallow-water of Northwest France, Iceland, Chukchi Sea and/or Bering Sea. In addition, its sequence similarity is highly relevant to these four species: Sertularia argentea (98.6 %), S. cupressina (98.8 %), S. plumosa (98.8 %) and S. robusta (99.4 %). All these provide a new insight into the relevance of North Pacific deep-sea species to the benthic fauna in Arctic and adjacent shallow-water. The taxonomic restriction of the genus Sertularia and the re-validation of the genus Polyserias are discussed. Future researches on more deep-sea species from Pacific and/or Atlantic are required to understand the evolution and speciation pattern involved in polar relevance.
关键词Chinare Subpolar Region Polar Relevance Pacific Affinity Molecular Phylogenetics Macrobenthos
DOI10.1007/s00300-015-1793-x
收录类别SCI
语种英语
WOS记录号WOS:000371640300004
引用统计
被引频次:2[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/337002/126183
专题海洋生物分类与系统演化实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, Dept Marine Organism Taxon & Phylogeny, 7 Nanhai Rd, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Marine Biol Museum, 7 Nanhai Rd, Qingdao 266071, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Univ Salento, Dipartimento Sci & Tecnol Biol Ambientali, I-73100 Lecce, Italy
5.State Ocean Adm, Inst Oceanog 3, 178 Daxue Rd, Xiamen 361005, Peoples R China
6.Ocean Univ China, Coll Fisheries, 5 Yushan Rd, Qingdao 266003, Peoples R China
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Song, Xikun,Gravili, Cinzia,Wang, Jianjun,et al. A new deep-sea hydroid (Cnidaria: Hydrozoa) from the Bering Sea Basin reveals high genetic relevance to Arctic and adjacent shallow-water species[J]. POLAR BIOLOGY,2016,39(3):461-471.
APA Song, Xikun.,Gravili, Cinzia.,Wang, Jianjun.,Deng, Yacheng.,Wang, Yongqiang.,...&Lin, Junhui.(2016).A new deep-sea hydroid (Cnidaria: Hydrozoa) from the Bering Sea Basin reveals high genetic relevance to Arctic and adjacent shallow-water species.POLAR BIOLOGY,39(3),461-471.
MLA Song, Xikun,et al."A new deep-sea hydroid (Cnidaria: Hydrozoa) from the Bering Sea Basin reveals high genetic relevance to Arctic and adjacent shallow-water species".POLAR BIOLOGY 39.3(2016):461-471.
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