Asgard archaea in the haima cold seep: Spatial distribution and genomic insights

doi:10.1016/j.dsr.2021.103489

IOCAS-IR

	Asgard archaea in the haima cold seep: Spatial distribution and genomic insights
	Lu, Rui 1,3,4; Gao, Zhao-Ming 1,2; Li, Wen-Li 1; Wei, Zhan-Fei 1,4; Wei, Tao-Shu 1,4; Huang, Jiao-Mei 1; Li, Meng5 ; Tao, Jun 6; Wang, Hong-Bin 6; Wang, Yong 1,2
	2021-04-01
发表期刊	DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
ISSN	0967-0637
卷号	170 页码:10
通讯作者	Gao, Zhao-Ming(gaozm@idsse.ac.cn) ; Wang, Yong(wangy@idsse.ac.cn)
摘要	Asgard archaea, believed to be the ancestor of eukaryotes, constitute a new superphylum prevalent in diverse sediment environments. Their distribution and metabolic potentials are diversified and elusive. In the present study, the distribution and genomic characteristics of Asgard archaea in the Haima cold seep of the South China Sea (SCS) were investigated. In total, we obtained 48 high-quality metagenome-assembled genomes (MAGs), which fell into 7 separated lineages affiliated with the phyla Lokiarchaeota, Thorarchaeota, Heimdallarchaeota and Gerdarchaeota. These Asgard archaea were mainly distributed in the cold seep but rarely detected in the control marine sediments. We found that Asgard might encode complex CRISPR-Cas systems, which likely protected the archaea against abundant viruses in cold seep sediments. Phylogenomic tree indicated the novelty of cold-seep Asgard archaea, and highlighted that MAG HM7_B34 was affiliated with the newly proposed Gerdarchaeota phylum. Metabolic reconstruction indicated that Gerdarchaeota in the Haima cold seep were obligate anaerobic archaea and might undergo autotrophic lifestyle using the Wood-Ljungdahl pathway. Moreover, Gerdarchaeota might metabolize formaldehyde and likely had the ability to hydrolyze oligosaccharides including chitin. Altogether, our study expands the cognition of Asgard archaea in terms of spatial distribution, biodiversity and carbon cycle in cold seep ecosystems.
关键词	Asgard Cold seep CRISPR-Cas system Gerdarchaeota Heimdallarchaeota
DOI	10.1016/j.dsr.2021.103489
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2018YFC0310005] ; Key Science and Technology Program of Hainan Province[ZDKJ2019011] ; National Natural Science Foundation of China[42076136] ; Youth Innovation Promotion Association Program of the Chinese Academy of Sciences[Y710071001] ; Science and Technology Cooperation Program of the Sanya City ; Chinese Academy of Sciences[2016YD23] ; NSFC from Sanya City[2015PT37]
WOS研究方向	Oceanography
WOS类目	Oceanography
WOS记录号	WOS:000635592000002
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/170264
专题	中国科学院海洋研究所
通讯作者	Gao, Zhao-Ming; Wang, Yong
作者单位	1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya, Hainan, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Qingdao, Shandong, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China 5.Shenzhen Univ, Inst Adv Study, Shenzhen Key Lab Marine Microbiome Engn, Shenzhen 518060, Peoples R China 6.China Geol Survey, Guangzhou Marine Geol Survey, MLR Key Lab Marine Mineral Resources, Guangzhou, Guangdong, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Lu, Rui,Gao, Zhao-Ming,Li, Wen-Li,et al. Asgard archaea in the haima cold seep: Spatial distribution and genomic insights[J]. DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,2021,170:10.
APA	Lu, Rui.,Gao, Zhao-Ming.,Li, Wen-Li.,Wei, Zhan-Fei.,Wei, Tao-Shu.,...&Wang, Yong.(2021).Asgard archaea in the haima cold seep: Spatial distribution and genomic insights.DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,170,10.
MLA	Lu, Rui,et al."Asgard archaea in the haima cold seep: Spatial distribution and genomic insights".DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS 170(2021):10.

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