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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
Xu, Ting; Feng, Dong2; Tao, Jun3; Qiu, Jian-Wen
2019
Source PublicationDEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
ISSN0967-0637
Volume146Pages:79
AbstractA 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.
DepartmentOMG
KeywordBathymodiolinae cold seep chemosynthesis deep-sea mussel Gigantidas Gammaproteobacteria South China Sea
DOI10.1016/j.dsr.2019.03.001
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/17967
Collection中科院边缘海地质重点实验室
Affiliation1.HKBU Inst Res & Continuing Educ, Shenzhen, Peoples R China
2.Hong Kong Baptist Univ, Dept Biol, 224 Waterloo Rd, Hong Kong, Peoples R China
3.Chinese Acad Sci, CAS Key Lab Ocean & Marginal Sea Geol, South China Sea Inst Oceanol, Guangzhou, Guangdong, Peoples R China
4.China Geol Survey, MLR Key Lab Marine Mineral Resources, Guangzhou Marine Geol Survey, Guangzhou 510070, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Xu, Ting,Feng, Dong,Tao, Jun,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 Xu, Ting,Feng, Dong,Tao, Jun,&Qiu, Jian-Wen.(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 Xu, Ting,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.
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