Chromosomal-scale genome assembly of the near-extinction big-head schizothorcin (Aspiorhynchus laticeps)

doi:10.1038/s41597-022-01671-1

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	Chromosomal-scale genome assembly of the near-extinction big-head schizothorcin (Aspiorhynchus laticeps)
	Niu, Jiangong 2,3; Zhang, Renming 2,3; Hu, Jiangwei 2,3; Zhang, Tao 2,3; Liu, Hong 2,3; Minavar, Muyit 2,3; Zhang, Hui 1; Xian, Weiwei 1
刊名	SCIENTIFIC DATA
	2022-09-09
卷号	9 期号:1 页码:7
DOI	10.1038/s41597-022-01671-1
通讯作者	Zhang, Hui(zhanghui@qdio.ac.cn) ; Xian, Weiwei(wwxian@qdio.ac.cn)
英文摘要	The big-head schizothorcin (Aspiorhynchus laticeps) is an endemic and near-extinction freshwater fish in Xinjiang, China. In this study, a chromosome-scale genome assembly of A. laticeps was generated using PacBio and Hi-C techniques. The PacBio sequencing data resulted in a 1.58 Gb assembly with a contig N50 of 1.27 Mb. Using Hi-C scaffolding approach, 88.38% of the initial assembled sequences were anchored and oriented into a chromosomal-scale assembly. The final assembly consisted of 25 pseudo-chromosomes that yielded 1.37 Gb of sequence, with a scaffold N50 of 44.02 Mb. BUSCO analysis showed a completeness score of 93.7%. The genome contained 48,537 predicted protein-coding genes and 58.31% of the assembly was annotated as repetitive sequences. Whole genome duplication events were further confirmed using 4dTv analysis. The genome assembly of A. laticeps should be valuable and important to understand the genetic adaptation and endangerment process of this species, which could lead to more effective management and conservation of the big-head schizothorcin and related freshwater fish species.
资助项目	Investigation on fishery resources and environment in key waters of Northwest China ; Youth Innovation Promotion Association CAS[2020211]
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE PORTFOLIO
WOS记录号	WOS:000852426500001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/180825]
专题	海洋研究所_海洋生态与环境科学重点实验室
通讯作者	Zhang, Hui; Xian, Weiwei
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Shandong, Peoples R China 2.Minist Agr & Rural Affairs Peoples Republ China, Sci Observing & Expt Stn Fishery Resources & Envi, Urumqi 830000, Peoples R China 3.Xinjiang Fisheries Res Inst, Urumqi 830000, Peoples R China
推荐引用方式 GB/T 7714	Niu, Jiangong,Zhang, Renming,Hu, Jiangwei,et al. Chromosomal-scale genome assembly of the near-extinction big-head schizothorcin (Aspiorhynchus laticeps)[J]. SCIENTIFIC DATA,2022,9(1):7.
APA	Niu, Jiangong.,Zhang, Renming.,Hu, Jiangwei.,Zhang, Tao.,Liu, Hong.,...&Xian, Weiwei.(2022).Chromosomal-scale genome assembly of the near-extinction big-head schizothorcin (Aspiorhynchus laticeps).SCIENTIFIC DATA,9(1),7.
MLA	Niu, Jiangong,et al."Chromosomal-scale genome assembly of the near-extinction big-head schizothorcin (Aspiorhynchus laticeps)".SCIENTIFIC DATA 9.1(2022):7.