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Chromosome-level genome assembly and annotation of Chinese herring (Ilisha elongata)

文献类型: 外文期刊

作者: Liu, Bingjian 1 ; Niu, Xinyi 1 ; Zhang, Chi 3 ; Zheng, Sixu 1 ; Gao, Luxiu 1 ; Han, Mingzhe 1 ; Feng, Taobo 1 ; Wu, Jinghua 1 ; Jiang, Chaoxuan 1 ; Kang, Shuaishuo 1 ; Xu, DongDong 4 ; Liu, Yifan 1 ;

作者机构: 1.Zhejiang Ocean Univ, Coll Marine Sci & Technol, Zhoushan 316022, Peoples R China

2.Zhejiang Ocean Univ, Natl Engn Res Ctr Facilitated Marine Aquaculture, Zhoushan 316022, Peoples R China

3.Tibet Acad Agr & Anim Husb Sci, Inst Fisheries Sci, Lhasa, Peoples R China

4.Zhejiang Marine Fisheries Res Inst, Key Lab Mariculture & Enhancement, Zhoushan 316021, 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: The Chinese herring (Ilisha elongata) is a commercially and scientifically significant fish species. In this study, we conducted high-precision whole-genome sequencing using two high-throughput platforms: second-generation MGI and third-generation PacBio. Hi-C technology assisted in assembling the contig sequences onto 24 chromosomes, resulting in a high-quality chromosome-level genome map with excellent continuity and coverage. The completed genome size was approximately 815 Mb, with a contig N50 of 4.82 Mb, scaffold N50 of 32.61 Mb, and a chromosome mounting rate of 95.32%. SNP and InDel purity rates were 0.003% and 0.012%, respectively, and the genome assembly completeness was 96.68%, assessed by BUSCO. Repetitive sequences were annotated via ab initio and homology predictions, identifying 295.7 Mb of repetitive sequences, constituting 35.08% of the genome. A total of 26,381 protein-coding genes were predicted, with 24,596 functionally annotated.

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