Mitochondrial and morphological adaptions of Lindaspio polybranchiata (Annelida: Spionidae) in the South China Sea

doi:10.3354/meps14525

	Mitochondrial and morphological adaptions of Lindaspio polybranchiata (Annelida: Spionidae) in the South China Sea
	Yan, Yujie1,2,3 ; Wang, Minxiao 1,2; Wu, Xuwen 4; Wang, Haining 1,2,3; Zhong, Zhaoshan1,2 ; Li, Chaolun1,2,3,5
	2024-03-07
发表期刊	MARINE ECOLOGY PROGRESS SERIES
ISSN	0171-8630
卷号	730 页码:43-58
通讯作者	Li, Chaolun(lcl@qdio.ac.cn)
摘要	A dense population of Lindaspio polybranchiata (Annelida: Spionidae) was discovered in a novel cold seep with drastic methane seepage located on the northern passive continental margin of the South China Sea. L. polybranchiata may function as a pioneer species by rapidly colonizing this nascent methane seep. We studied its classification status and evolutionary selection adaptation based on the mitochondrial genome. Phylogenetic analysis revealed that the deep-sea genus Lindaspio clustered with the neritic Rhynchospio aff. asiatica, and the ancestor of the deep-sea Lindaspio might originate from shallow-water spionids. Twelve potentially adaptive mutations were identified in cox1, cox3, cytb, and nad5. The morphological characteristics of L. polybranchiata and R. aff. asiatica collected in the intertidal zones were systematically compared to explore the possible phenotypic adaptations of L. polybranchiata to extreme deep-sea environments. L. polybranchiata lost its eyespots due to long-term colonization of the dark habitat in the deep sea but developed an enlarged caruncle for facilitating chemical perception in the darkness. The specific ventral branchiae and extended respiratory surfaces may aid the survival of L. polybranchiata in the hypoxic environment of the cold seep. This study provides novel insights into the molecular and morphological adaptations of a species endemic in chemosynthetic ecosystems.
关键词	Deep-sea polychaetes Mitogenome Phylogenetic study Positive selection Morphological adaptation
DOI	10.3354/meps14525
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[42030407] ; National Natural Science Foundation of China[42076091] ; NSFC Innovative Group Grant[42221005] ; Marine S&T Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology (Qingdao)[2022QNLM030004] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42000000]
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Oceanography
WOS类目	Ecology ; Marine & Freshwater Biology ; Oceanography
WOS记录号	WOS:001204485700002
出版者	INTER-RESEARCH
WOS关键词	GULF-OF-MEXICO ; PYGOSPIO-ELEGANS POLYCHAETA ; CYTOCHROME-C-OXIDASE ; BRINE POOL NR-1 ; DEEP-SEA ; COLD-SEEP ; HYDROTHERMAL VENTS ; PHYLOGENETIC ANALYSIS ; ORBINIID POLYCHAETE ; NUCHAL ORGANS
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/185559
专题	海洋生态与环境科学重点实验室海洋生物分类与系统演化实验室深海极端环境与生命过程研究中心
通讯作者	Li, Chaolun
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Lab Marine Organism Taxon & Phylogeny, Qingdao Key Lab Marine Biodivers & Conservat, Qingdao 266071, Peoples R China 5.Chinese Acad Sci, South China Sea Inst Oceanol, Guangzhou 510301, Peoples R China
第一作者单位	中国科学院海洋研究所; 深海极端环境与生命过程研究中心
通讯作者单位	中国科学院海洋研究所; 深海极端环境与生命过程研究中心
推荐引用方式 GB/T 7714	Yan, Yujie,Wang, Minxiao,Wu, Xuwen,et al. Mitochondrial and morphological adaptions of Lindaspio polybranchiata (Annelida: Spionidae) in the South China Sea[J]. MARINE ECOLOGY PROGRESS SERIES,2024,730:43-58.
APA	Yan, Yujie,Wang, Minxiao,Wu, Xuwen,Wang, Haining,Zhong, Zhaoshan,&Li, Chaolun.(2024).Mitochondrial and morphological adaptions of Lindaspio polybranchiata (Annelida: Spionidae) in the South China Sea.MARINE ECOLOGY PROGRESS SERIES,730,43-58.
MLA	Yan, Yujie,et al."Mitochondrial and morphological adaptions of Lindaspio polybranchiata (Annelida: Spionidae) in the South China Sea".MARINE ECOLOGY PROGRESS SERIES 730(2024):43-58.