Adaptive mechanisms of the deep-sea coral Polymyces wellsi (Flabellidae, Scleractinia) illuminate strategies for global climate change

doi:10.1016/j.ecolind.2023.110502

IOCAS-IR > 实验海洋生物学重点实验室

	Adaptive mechanisms of the deep-sea coral Polymyces wellsi (Flabellidae, Scleractinia) illuminate strategies for global climate change
	Li, Junyuan1,2 ; Zhou, Tong 1,4; Li, Yang 1; Xu, Kuidong1,3,4
	2023-10-01
发表期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
卷号	154 页码:12
通讯作者	Xu, Kuidong(kxu@qdio.ac.cn)
摘要	An oxygen minimum zone (OMZ) typically occurs in the tropical western Pacific and is characterized by an unfavorably low pH, a rather low oxygen content and extreme food limitation. Understanding how deep-sea corals survive in these challenging conditions, especially how calcification occurs at depths near the aragonite saturation horizon, is anticipated to provide a strategy for stony corals to address global climate change. In this study, we collected the deep-sea solitary coral Polymyces wellsi living in the OMZ of the Caroline Ridge and analyzed its mitochondrial genome and transcriptome. Phylogenetic analysis based on mitochondrial genomes suggested that the solitary character and the deep-sea adaptations evolved at least three times in Scleractinia. In comparison to the transcriptomes of shallow-water counterparts, the genetic elements related to biomineralization, mitochondrial components, and ciliary motion underwent positive selection and expansion in P. wellsi, which suggested their significance in facilitating the adaptations to the stressors of low pH, insufficient oxygen content, scarce food resources, or the combined effects of these stressors within the OMZ. An interesting finding of this study was that the positively selected amino acids in P. wellsi increased the isoelectric points of its skeleton organic matrix proteins, which suggested a novel bio-indicator that may reflect the adaptive capacity to the external acidified seawater. Overall, this study not only provides insights into the adaptive mechanisms of deepsea solitary corals but also illuminates strategies for global climate change.
关键词	Coral Biomineralization Ocean acidification Hypoxia Adaptation Deep sea
DOI	10.1016/j.ecolind.2023.110502
收录类别	SCI
语种	英语
资助项目	National Natural Science Founda- tion of China[41930533] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42000000] ; Senior User Project of R/V KEXUE of the Center for Ocean Mega-Science, Chinese Academy of Sciences[KEXUE2020GZ02]
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS记录号	WOS:001027684900001
出版者	ELSEVIER
WOS关键词	SKELETAL ORGANIC MATRIX ; CALCIFICATION ; ANNOTATION ; ADAPTATION ; EVOLUTION ; RESPONSES ; SELECTION ; PROTEINS ; OXYGEN ; CARBON
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/182497
专题	实验海洋生物学重点实验室
通讯作者	Xu, Kuidong
作者单位	1.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, Shandong Prov Key Lab Expt Marine Biol,Lab Marine, Qingdao 266071, Peoples R China 2.Taizhou Vocat Coll Sci & Technol, Coll Agr & Bioengn, Taizhou 318020, Peoples R China 3.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519082, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Li, Junyuan,Zhou, Tong,Li, Yang,et al. Adaptive mechanisms of the deep-sea coral Polymyces wellsi (Flabellidae, Scleractinia) illuminate strategies for global climate change[J]. ECOLOGICAL INDICATORS,2023,154:12.
APA	Li, Junyuan,Zhou, Tong,Li, Yang,&Xu, Kuidong.(2023).Adaptive mechanisms of the deep-sea coral Polymyces wellsi (Flabellidae, Scleractinia) illuminate strategies for global climate change.ECOLOGICAL INDICATORS,154,12.
MLA	Li, Junyuan,et al."Adaptive mechanisms of the deep-sea coral Polymyces wellsi (Flabellidae, Scleractinia) illuminate strategies for global climate change".ECOLOGICAL INDICATORS 154(2023):12.

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