Chromosome-level draft genome assembly of <i>Hypomesus nipponensis</i> reveals transposable element expansion reshaping the genome structure.

ABSTRACT: Hypomesus nipponensis a commercially valuable fish within the Osmeriformes order, is naturally found in northeastern Asia and has been extensively introduced for commercial purposes across eastern Asia. To investigate the taxonomic status and evolutionary history of Hypomesus nipponensis within the Osmeridae family, we first performed a de novo genome assembly using PacBio HiFi reads and CLR (Continuous Long Read) reads. Subsequently, we leveraged synteny information from closely related species to further refine the assembly and construct a chromosome-level genome. The final assembly spans 507.8 Mb, with a scaffold N50 of 20 Mb, achieving chromosome-level contiguity. It comprises 164 Mb of repetitive sequences and encodes 27,876 protein-coding genes. Compared to previ

SUBMITTER: Zhu C 

PROVIDER: S-EPMC12083275 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature