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Chromosome-level genome assembly of starry flounder (Platichthys stellatus).

Abstract

Starry flounder (Platichthys stellatus) is widely distributed along the coastlines of the North Pacific. As an euryhaline flatfish, it can adapt to a wide range of environmental salinity ranging from freshwater to seawater, and is a promising aquaculture flatfish species in Korea and North China. However, no high-quality starry flounder reference genome has been reported to date, which greatly limits the studies of genetics and functional genomics. Here, we obtained a high-quality chromosome-level starry flounder genome assembly with a length of 643.56 Mb (scaffold N50: 26.19 Mb, contig N50: 10.00 Mb) combining short-reads sequencing, PacBio HiFi sequencing, and Hi-C sequencing. Approximately 94.02% of assembled sequences were anchored into 24 pseudochromosomes, and a total of 18 telomeres were detected. Totally 22,835 protein-coding genes and 227.87 Mb repetitive sequences were identified. In summary, the high-quality chromosome-level genome assembly not only provides valuable resources for genetic research in starry flounder, but also advances the development of molecular breeding technology of starry flounder.

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Weiwei Zheng, Changlin Liu, Shenglei Han, Tengteng Wang, Tao Yang, Zhihong Liu, Dong Xu, Huizong Han, Xiaoqing Xi, Changwei Shao, Kaiqiang Liu. 2025-07-14. Chromosome-level genome assembly of starry flounder (Platichthys stellatus).. https://doi.org/10.1038/s41597-025-05525-4

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