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Chromosome-level genome assembly and annotation of the skinnycheek lanternfish Benthosema ptertum

Qiaohong Liu,Xiaoying Cao,Lisheng Wu,Huan Wang,Hai Li,Longshan Lin,Shufang Liu,Shaoxiong Ding

Published 2024 in Scientific Data

ABSTRACT

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.

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