Liang Xuanguang, Huang Junrou, Liu Bilin, Wu Feng, Liu Jian, Lu Jianguo
School of Marine Sciences, Sun Yat-sen University, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519082, Guangdong, China.
College of Marine Living Resource Sciences and Management, Shanghai Ocean University, Shanghai, 201306, China.
Sci Data. 2024 Dec 19;11(1):1405. doi: 10.1038/s41597-024-04280-2.
Skipjack tuna (Katsuwonus pelamis), a highly migratory pelagic species widely distributed in tropical and subtropical oceanic regions, has consistently ranked third in global fishery landings from 2015 to 2022 and holds substantial economic significance for the coastal fisheries of Pacific Rim countries. Integrating PacBio and Hi-C data, a chromosome-level assembly of its genome was accomplished. This assembly comprises 24 pseudo-chromosomes, yielding a genome size of 827.9 Mb with a scaffold N50 length of 32.7 Mb, indicative of a highly contiguous assembly. A BUSCO assessment ascertained the comprehensiveness of the genome at 98.7%, indicative of comprehensive genomic representation. A total of 32,001 protein-coding genes were predicted with 31,993 genes (99.98%) annotated. The chromosome-level genome assembly of K. pelamis is key to understanding its evolution and genetics, facilitating targeted conservation and sustainable fishing practices for this economically important species.
鲣鱼（Katsuwonus pelamis）是一种高度洄游的远洋鱼类，广泛分布于热带和亚热带海洋区域，在2015年至2022年期间，其全球渔业产量一直位居第三，对环太平洋国家的沿海渔业具有重要的经济意义。通过整合PacBio和Hi-C数据，完成了其基因组的染色体水平组装。该组装包含24条假染色体，基因组大小为827.9 Mb，支架N50长度为32.7 Mb，表明组装高度连续。BUSCO评估确定基因组完整性为98.7%，表明基因组代表性全面。共预测了32,001个蛋白质编码基因，其中31,993个基因（99.98%）得到注释。鲣鱼的染色体水平基因组组装是理解其进化和遗传学的关键，有助于对这一具有重要经济意义的物种进行有针对性的保护和可持续捕捞。
