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

doi:10.1016/j.ecolind.2023.110502

CORC > 海洋研究所 > 中国科学院海洋研究所 > 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, Junyuan 1,4; Zhou, Tong 1,2; Li, Yang 1; Xu, Kuidong 1,2,3
刊名	ECOLOGICAL INDICATORS
	2023-10-01
卷号	154 页码:12
关键词	Coral Biomineralization Ocean acidification Hypoxia Adaptation Deep sea
ISSN号	1470-160X
DOI	10.1016/j.ecolind.2023.110502
通讯作者	Xu, Kuidong(kxu@qdio.ac.cn)
英文摘要	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.
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关键词	SKELETAL ORGANIC MATRIX ; CALCIFICATION ; ANNOTATION ; ADAPTATION ; EVOLUTION ; RESPONSES ; SELECTION ; PROTEINS ; OXYGEN ; CARBON
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:001027684900001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/182496]
专题	海洋研究所_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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519082, Peoples R China 4.Taizhou Vocat Coll Sci & Technol, Coll Agr & Bioengn, Taizhou 318020, Peoples R China
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.