State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361000, China.
Yellow sea fisheries research institute, Chinese Academy of Fishery Sciences, Qingdao, 266000, China.
Sci Data. 2024 Oct 30;11(1):1178. doi: 10.1038/s41597-024-04039-9.
Lanternfish not only boast the most abundant biomass among marine fish species but also play a vital role in marine ecosystems. As one of the lanternfish species with the highest global catch, the skinnycheek lanternfish (Benthosema pterotum) is widely distributed in the Indo-Pacific region, playing a pivotal role in the marine biological pump. This study constructed the first chromosome-level genome of B. pterotum using a combination of short-read sequencing, PacBio, and Hi-C sequencing technologies. The genome size of B. pterotum is 1,272.53 Mb, with a contig N50 of 810 Kb and a scaffold N50 of 54.49 M. More than 99.65% of contigs were successfully anchored onto 24 pseudochromosomes, and 95.7% of BUSCO genes were identified within the genome, demonstrating the high level of completeness in genome assembly. A total of 24,934 protein-coding genes were predicted, of which 99.02% were functionally annotated. The successful assembly of a high-quality genome for B. pterotum provides valuable genetic resources for better understanding its biological characteristics and potentially those of all lanternfish species.
灯笼鱼不仅拥有海洋鱼类中最丰富的生物量，而且在海洋生态系统中也起着至关重要的作用。瘦颊灯笼鱼（Benthosema pterotum）作为全球捕捞量最高的灯笼鱼物种之一，广泛分布于印度-太平洋地区，在海洋生物泵中起着关键作用。本研究采用短读测序、PacBio 和 Hi-C 测序技术，首次构建了 B. pterotum 的染色体水平基因组。B. pterotum 的基因组大小为 1272.53 Mb，其 contig N50 为 810 Kb，scaffold N50 为 54.49 Mb。超过 99.65%的 contigs成功锚定到 24 条假染色体上，基因组中鉴定到 95.7%的 BUSCO 基因，表明基因组组装具有较高的完整性。共预测到 24934 个蛋白编码基因，其中 99.02%得到了功能注释。成功组装出高质量的 B. pterotum 基因组，为更好地了解其生物学特性以及可能所有灯笼鱼物种的特性提供了宝贵的遗传资源。
