Comparative transcriptomic analysis of deep- and shallow-water barnacle species (Cirripedia, Poecilasmatidae) provides insights into deep-sea adaptation of sessile crustaceans

doi:10.1186/s12864-020-6642-9

CORC > 海洋研究所 > 中国科学院海洋研究所

	Comparative transcriptomic analysis of deep- and shallow-water barnacle species (Cirripedia, Poecilasmatidae) provides insights into deep-sea adaptation of sessile crustaceans
	Gan, Zhibin 1,4; Yuan, Jianbo 1,4; Liu, Xinming 4; Dong, Dong 1,4; Li, Fuhua 1,2,3,4; Li, Xinzheng 1,2,3,4
刊名	BMC GENOMICS
	2020-03-17
卷号	21 期号:1 页码:13
关键词	Barnacle Deep-sea habitat Transcriptome Adaptation
ISSN号	1471-2164
DOI	10.1186/s12864-020-6642-9
通讯作者	Li, Fuhua(fhli@qdio.ac.cn) ; Li, Xinzheng(lixzh@qdio.ac.cn)
英文摘要	Background Barnacles are specialized marine organisms that differ from other crustaceans in possession of a calcareous shell, which is attached to submerged surfaces. Barnacles have a wide distribution, mostly in the intertidal zone and shallow waters, but a few species inhabit the deep-sea floor. It is of interest to investigate how such sessile crustaceans became adapted to extreme deep-sea environments. We sequenced the transcriptomes of a deep-sea barnacle, Glyptelasma gigas collected at a depth of 731 m from the northern area of the Zhongjiannan Basin, and a shallow-water coordinal relative, Octolasmis warwicki. The purpose of this study was to provide genetic resources for investigating adaptation mechanisms of deep-sea barnacles. Results Totals of 62,470 and 51,585 unigenes were assembled for G. gigas and O. warwicki, respectively, and functional annotation of these unigenes was made using public databases. Comparison of the protein-coding genes between the deep- and shallow-water barnacles, and with those of four other shallow-water crustaceans, revealed 26 gene families that had experienced significant expansion in G. gigas. Functional annotation showed that these expanded genes were predominately related to DNA repair, signal transduction and carbohydrate metabolism. Base substitution analysis on the 11,611 single-copy orthologs between G. gigas and O. warwicki indicated that 25 of them were distinctly positive selected in the deep-sea barnacle, including genes related to transcription, DNA repair, ligand binding, ion channels and energy metabolism, potentially indicating their importance for survival of G. gigas in the deep-sea environment. Conclusions The barnacle G. gigas has adopted strategies of expansion of specific gene families and of positive selection of key genes to counteract the negative effects of high hydrostatic pressure, hypoxia, low temperature and food limitation on the deep-sea floor. These expanded gene families and genes under positive selection would tend to enhance the capacities of G. gigas for signal transduction, genetic information processing and energy metabolism, and facilitate networks for perceiving and responding physiologically to the environmental conditions in deep-sea habitats. In short, our results provide genomic evidence relating to deep-sea adaptation of G. gigas, which provide a basis for further biological studies of sessile crustaceans in the deep sea.
资助项目	National Key R&D Program of China[2018YFC0310800] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB06010101]
WOS研究方向	Biotechnology & Applied Microbiology ; Genetics & Heredity
语种	英语
出版者	BMC
WOS记录号	WOS:000521341200001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/167035]
专题	中国科学院海洋研究所
通讯作者	Li, Fuhua; Li, Xinzheng
作者单位	1.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Biol & Biotechnol, Qingdao 266237, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Gan, Zhibin,Yuan, Jianbo,Liu, Xinming,et al. Comparative transcriptomic analysis of deep- and shallow-water barnacle species (Cirripedia, Poecilasmatidae) provides insights into deep-sea adaptation of sessile crustaceans[J]. BMC GENOMICS,2020,21(1):13.
APA	Gan, Zhibin,Yuan, Jianbo,Liu, Xinming,Dong, Dong,Li, Fuhua,&Li, Xinzheng.(2020).Comparative transcriptomic analysis of deep- and shallow-water barnacle species (Cirripedia, Poecilasmatidae) provides insights into deep-sea adaptation of sessile crustaceans.BMC GENOMICS,21(1),13.
MLA	Gan, Zhibin,et al."Comparative transcriptomic analysis of deep- and shallow-water barnacle species (Cirripedia, Poecilasmatidae) provides insights into deep-sea adaptation of sessile crustaceans".BMC GENOMICS 21.1(2020):13.