Supporting data for the draft genome of the Northern snakehead, Channa argus.

Dataset type: Genomic
Data released on March 03, 2017

Xu J; Bian C; Chen K; Liu G; Jiang Y; Luo Q; You X; Peng W; Li J; Huang Y; Yi Y; Dong C; Deng H; Zhang S; Zhang H; Shi Q; Xu P (2017): Supporting data for the draft genome of the Northern snakehead, Channa argus. GigaScience Database.


The Northern snakehead (Channa argus), a member of Channidae family in Perciformes, is an economically important freshwater fish with its main distributions in Asian and African countries. 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 researches have been 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 air breathing, a distinguished feature of this teleost fish.
We assembled the C. argus genome with a total of 140.3 Gigabases (Gb) of raw reads, which were sequenced by the Illumina HiSeq2000 platform. The final draft genome assembly is approximately 615.3 million bases (Mb), with 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. We also predicted 19,877 protein-coding genes within the genome assembly, with an average of 10.5 exons per gene.

Additional details

Read the peer-reviewed publication(s):

Accessions (data generated as part of this study):

SRA: SRP078899

Accessions (data referenced by this study):

BioSample: SAMN04251459

Sample IDTaxonomic IDCommon NameGenbank NameScientific NameSample Attributes
channa argus genome215402Channa argusChanna argus Description:DNA extracted from blood of a single f...
Alternative names:Channa argus_CN
Common name:northern snakehead
Displaying 1-1 of 1 Sample(s).

File NameSample IDData TypeFile FormatSizeRelease Date 
Coding sequenceFASTA11.58 MB2017-02-23
annotationGFF2.28 MB2017-02-23
protein sequenceFASTA7.59 MB2017-02-23
otherIPR4.98 MB2017-02-23
Genome sequenceFASTA165.53 MB2017-02-23
otherUNKNOWN0.38 KB2017-02-23
otherUNKNOWN0.53 KB2017-02-23
ScriptTEXT4.34 KB2017-02-23
Phylogenetic treeNewick0.23 KB2017-02-23
ScriptTEXT2.18 KB2017-02-23
Displaying 1-10 of 13 File(s).
Funding body Awardee Award ID Comments
Chinese Academy of Fishery Sciences Jian Xu 2015C005
Chinese Academy of Fishery Sciences Jian Xu 2016HY-JC03
National Natural Science Foundation of China Jian Xu 31422057
National Natural Science Foundation of China Yanliang Jiang 31402291
Education and Research of Guangdong Province Qiong Shi 2013B090800017
Quality Inspection Programs of Scientific Research Project Hong Liu 2015IK246
Shenzhen Municipal Government of China Qiong Shi JSGG20141020113728803 Shenzhen Special Program for Future Industrial Development
Chinese Academy of Fishery Sciences Jian Xu 2016DKA30470 National Infrastructure of Fishery Germplasm Resources of China
Date Action
March 3, 2017 Dataset publish
March 6, 2017 Manuscript Link added : 10.1093/gigascience/gix011