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A chromosome-level genome assembly of Electrophorus voltai, a species of electric eel

文献类型： 外文期刊

作者： Wang, Yuanyuan 1 ; Liu, Yi 1 ; Yang, Yexin 1 ; Bian, Chao 2 ; Liu, Chao 1 ; Zhang, Yang 3 ; Mu, Xidong 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Pearl River Fisheries Res Inst, Key Lab Prevent & Control Aquat Invas Alien Specie, Minist Agr & Rural Affairs,Guangdong Modern Recrea, Guangzhou 510380, Peoples R China

2.Shenzhen Univ, Coll Life Sci & Oceanog, Lab Aquat Genom, Shenzhen 518060, Peoples R China

3.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Breeding Biotechnol & Sustainable Aq, Guangzhou 510301, Peoples R China

4.Guangdong Prov Key Lab Aquat Anim Immunol & Sustai, Guangzhou 510380, Peoples R China

期刊名称：SCIENTIFIC DATA （ 影响因子：6.9； 五年影响因子：8.7 ）

ISSN：

年卷期： 2025 年 12 卷 1 期

页码：

收录情况： SCI

摘要： Electrophorus voltai, a South American electric eel, is renowned as the most powerful bioelectricity generator, capable of producing electric discharges reaching 860 volts. This remarkable ability positions it as an invaluable model for investigating the genetic, physiological, and developmental mechanisms driving electrogenesis in vertebrates. Here, we report a chromosome-level genome assembly of E. voltai, constructed using PacBio HiFi long reads and Hi-C scaffolding. The final assembly spans 666.91 Mb, with a contig N50 of 1.54 Mb and a scaffold N50 of 28.42 Mb, anchored onto 26 chromosomes. Genome annotation revealed 23,221 protein-coding genes, of which 22,306 genes were functionally annotated. Repetitive sequences account for 298.83 Mb of the genome, dominated by transposable elements. Additionally, we identified 225 miRNAs, 5,409 tRNAs, 288 rRNAs, and 535 snRNAs. This genome provides a foundational resource for comparative genomic studies of electric fish and facilitates investigations into the evolution of electrogenesis, electrocyte development, and bioelectric signal regulation in vertebrates.

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