A new species of deep-sea mussel (Bivalvia: Mytilidae: Gigantidas) from the South China Sea: Morphology, phylogenetic position, and gill-associated microbes

doi:10.1016/j.dsr.2019.03.001

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	A new species of deep-sea mussel (Bivalvia: Mytilidae: Gigantidas) from the South China Sea: Morphology, phylogenetic position, and gill-associated microbes
	Qiu, Jian-Wen ; Xu, Ting ; Feng, Dong 3; Tao, Jun 1
刊名	DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
	2019
卷号	146 页码:79
关键词	Bathymodiolinae cold seep chemosynthesis deep-sea mussel Gigantidas Gammaproteobacteria South China Sea
ISSN号	0967-0637
DOI	10.1016/j.dsr.2019.03.001
英文摘要	A new species of deep-sea mussel, Gigantidas haimaensis n. sp., was described from the Haima Cold Seep on the northwestern slope of the South China Sea. This new species superficially resembles Gigantidas platifrons, but can be distinguished from it by more elongated shells, subterminal umbones, and a nearly straight dorsal shell margin. Phylogenetic reconstruction based on three mitochondrial genes and two nuclear genes revealed that this new species belongs to the Gigantidas Glade. Meanwhile, phylogenetic analyses based on the mitochondrial genes cytochrome oxidase I (cox1) and NADH dehydrogenase subunit 4 (nad4) uncovered G. platifrons, Gigantidas childressi, and Gigantidas mauritanicus as the three most closely related species to this new species. Pairwise comparison between G. haimaensis n. sp. and these three species revealed sequence divergence from 4.38% to 6.30% for cox1, and from 4.67% to 5.72% for nad4. The morphological and genetic divergences with the congeneric species of Gigantidas warrant the taxonomic recognition of G. haimaensis n. sp. Metagenomic sequencing the microbial 16S rRNA gene in the gills of G. haimaensis n. sp. indicated that this mussel species mainly relies on methanotrophic Gammaproteobacteria for nutrition.
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/17967]
专题	南海海洋研究所_中科院边缘海地质重点实验室
作者单位	1.Chinese Acad Sci, CAS Key Lab Ocean & Marginal Sea Geol, South China Sea Inst Oceanol, Guangzhou, Guangdong, Peoples R China 2.HKBU Inst Res & Continuing Educ, Shenzhen, Peoples R China 3.Hong Kong Baptist Univ, Dept Biol, 224 Waterloo Rd, Hong Kong, Peoples R China 4.China Geol Survey, MLR Key Lab Marine Mineral Resources, Guangzhou Marine Geol Survey, Guangzhou 510070, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Qiu, Jian-Wen,Xu, Ting,Feng, Dong,et al. A new species of deep-sea mussel (Bivalvia: Mytilidae: Gigantidas) from the South China Sea: Morphology, phylogenetic position, and gill-associated microbes[J]. DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,2019,146:79, 90.
APA	Qiu, Jian-Wen,Xu, Ting,Feng, Dong,&Tao, Jun.(2019).A new species of deep-sea mussel (Bivalvia: Mytilidae: Gigantidas) from the South China Sea: Morphology, phylogenetic position, and gill-associated microbes.DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,146,79.
MLA	Qiu, Jian-Wen,et al."A new species of deep-sea mussel (Bivalvia: Mytilidae: Gigantidas) from the South China Sea: Morphology, phylogenetic position, and gill-associated microbes".DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS 146(2019):79.