Fu Zhenqiang, Huang Junrou, Wang Li, Liang Xuanguang, Chen Qinglong, Hu Yan, Liu Jia, Lu Jianguo
School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, China.
Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519080, China.
Sci Data. 2025 Apr 18;12(1):656. doi: 10.1038/s41597-025-04834-y.
Gray's grenadier anchovy, Coilia grayii, is an important anadromous fish species with economic value in near ocean ecosystems. Despite its significance, the lack of genomic resources has constrained our understanding of its genetic foundation, phylogenetic relationships, and adaptive evolution strategies. In this study, we assembled a chromosome-level reference genome for C. grayii by integrating PacBio HiFi long-reads, MGI short-reads, and Hi-C sequencing data. The resulting genome is 920.64 Mb in size, with a contig N50 of 36.45 Mb. The genome contains 324.19 Mb of repetitive sequences, and 29,496 protein-coding genes were predicted, with 29,395 functionally annotated. BUSCO analysis revealed that 95.2% of the 3,640 benchmarking genes were complete, underscoring the high quality of the assembly. This high-quality genome will provide crucial insights into the phylogeny, evolutionary history, and genetic basis of adaptive traits in Coilia species.
灰氏凤鲚（Coilia grayii）是近海生态系统中具有经济价值的重要溯河洄游鱼类。尽管其具有重要意义，但基因组资源的缺乏限制了我们对其遗传基础、系统发育关系和适应性进化策略的理解。在本研究中，我们通过整合PacBio HiFi长读长、MGI短读长和Hi-C测序数据，为灰氏凤鲚组装了一个染色体水平的参考基因组。所得基因组大小为920.64 Mb，重叠群N50为36.45 Mb。该基因组包含324.19 Mb的重复序列，预测有29,496个蛋白质编码基因，其中29,395个具有功能注释。BUSCO分析显示，3,640个基准基因中有95.2%是完整的，这突出了组装的高质量。这个高质量的基因组将为凤鲚属物种的系统发育、进化历史和适应性性状的遗传基础提供关键见解。
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