文献类型： 外文期刊
作者： Wang, Yuanyuan 1 ; Yang, Yexin 1 ; Wu, Yuli 2 ; Liu, Yi 1 ; Li, Qingyong 3 ; Liu, Chao 1 ; Jiang, Zhiyong 2 ; Jiang, Wanying 2 ; Chen, Fangcan 4 ; Mu, Xidong 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Pearl River Fisheries Res Inst, Guangdong Modern Recreat Fisheries Engn Technol Ct, Minist Agr & Rural Affairs,Key Lab Prevent & Contr, Guangzhou 510380, Peoples R China
2.Agrotech Extens Ctr Guangdong Prov, Guangzhou 510520, Peoples R China
3.Fisheries Res & Extens Ctr Huizhou, Huizhou 516002, Peoples R China
4.Guangdong Hanyu Ecol Technol Co Ltd, Guangzhou, Peoples R China
5.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： 2024 年 11 卷 1 期
页码：
收录情况： SCI
摘要： The ratmouth barbel (Ptychidio jordani) is a critically endangered freshwater fish from the Cyprinidae family, primarily due to overfishing and habitat disruption. To address the challenges of its shrinking wild populations and the difficulties in artificial reproduction, we sequenced, assembled, and annotated a high-quality chromosome-level genome of P. jordani using next-generation short-read sequencing, third-generation long-read sequencing, and Hi-C sequencing. The final genome assembly was 1.14 Gb, consisting of 25 chromosomes with a contig N50 of 25.14 Mb and a scaffold N50 of 42.91 Mb. We identified 25,183 protein-coding genes, 751.75 Mb of repeats, and 19,373 ncRNAs. Methylation loci on most chromosomes ranged from 1,000 to 3,000 per 100 kb window. Gene expression levels across various tissues were analyzed, revealing 12,135 (caudal fin), 11,465 (liver), 14,438 (gill), 12,413 (heart), 8,301 (spleen), and 3,578 (kidney) differentially expressed genes compared to muscle. The comprehensive genomic and transcriptomic resources generated here will aid in understanding the ecology, adaptation, and environmental responses of P. jordani, supporting future research and conservation efforts.
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