Chromosome-level genome assembly of Triplophysa scleroptera.

Triplophysa scleroptera is an endemic fish species in Qinghai Lake and the upper reaches of the Yellow River. However, studies on conservation and evolutionary genetics were seriously impeded by the absence of a reference genome. Here, by using PacBio HiFi sequencing and Hi-C assembly technology, we assembled a chromosome-level genome of T. scleroptera, with a total length of 660.22 Mb and 99.82% of the sequence anchored to 25 chromosomes. The contig N50 and scaffold N50 were 9.09 Mb and 24.38 Mb, respectively. The evaluation using BUSCO indicated the genome assembly to be 96.40% complete. About 33.41% of the genome consists of repeat elements. We predicted 26,168 protein-coding genes in the genome, and 99.02% of them were functionally annotated. This high-quality reference genome would serve as a valuable genomic resource for advancing evolutionary conservation genetics studies in this species.