文献类型： 外文期刊
作者： Xu, Jian 1 ; Bian, Chao 3 ; Chen, Kunci 6 ; Liu, Guiming 7 ; Jiang, Yanliang 1 ; Luo, Qing 6 ; You, Xinxin 3 ; Peng, Wenz 1 ;
作者机构： 1.Chinese Acad Fishery Sci, CAFS Key Lab Aquat Genom, Key Lab Aquat Genom, Minist Agr, Beijing 100141, Peoples R China
2.Chinese Acad Fishery Sci, Beijing Key Lab Fishery Biotechnol, Beijing 100141, Peoples R China
3.Chinese Acad Fishery Sci, BGI Res Ctr Aquat Genom, Shenzhen 518083, Guangdong, Peoples R China
4.Shenzhen Key Lab Marine Genom, Guangdong Prov Key Lab Mol Breeding Marine Econ A, BGI, Shenzhen 518083, Guangdong, Peoples R China
5.Univ Macau, Ctr Reprod Dev & Aging, Fac Hlth Sci, Taipa, Macau, Peoples R China
6.Chinese Acad Fishery Sci, Pearl River Fisheries Res Inst, Guangzhou 510380, Guangdong, Peoples R China
7.Chinese Acad Sci, Beijing Inst Genom, CAS Key Lab Genome Sci & Informat, Beijing 100029, Peoples R China
8.Xiamen Univ, Fujian Collaborat Innovat Ctr Exploitat & Utiliza, Xiamen 361102, Fujian, Peoples R China
9.Henan Normal Univ, Coll Fishery, Xinxiang 453007, Henan, Peoples R China
10.Chinese Acad Forestry, Res Inst Forestry Policy & Informat, Beijing 100091, Peoples R China
11.Sun Yat Sen Univ, Sch Life Sci, Coll Ecol & Evolut, Lab Aquat Genom, Guangzhou 510275, Guangdong, Peoples R China
关键词： Channa argus; genome assembly; annotation; gene prediction
期刊名称：GIGASCIENCE （ 影响因子：6.524； 五年影响因子：8.702 ）
ISSN： 2047-217X
年卷期： 2017 年 6 卷 4 期
页码：
收录情况： SCI
摘要： Background: The Northern snakehead (Channa argus), a member of the Channidae family of the Perciformes, is an economically important freshwater fish native to East Asia. In North America, it has become notorious as an intentionally released invasive species. Its ability to breathe air with gills and migrate short distances over land makes it a good model for bimodal breath research. Therefore, recent research has focused on the identification of relevant candidate genes. Here, we performed whole genome sequencing of C. argus to construct its draft genome, aiming to offer useful information for further functional studies and identification of target genes related to its unusual facultative air breathing. Findings: We assembled the C. argus genome with a total of 140.3 Gb of raw reads, which were sequenced using the Illumina HiSeq2000 platform. The final draft genome assembly was approximately 615.3 Mb, with a contig N50 of 81.4 kb and scaffold N50 of 4.5 Mb. The identified repeat sequences account for 18.9% of the whole genome. The 19 877 protein-coding genes were predicted from the genome assembly, with an average of 10.5 exons per gene. Conclusion: We generated a high-quality draft genome of C. argus, which will provide a valuable genetic resource for further biomedical investigations of this economically important teleost fish.
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