{Reference Type}: Dataset
{Title}: Chromosome-level genome assembly and annotation of the cold-water species Ophiura sarsii.
{Author}: Han C;Zhang Q;Li Y;Sun Y;Dong Y;Ge M;Li Z;Hu X;Liu B;Zhang X;Wang Z;Xu Q;
{Journal}: Sci Data
{Volume}: 11
{Issue}: 1
{Year}: 2024 May 30
{Factor}: 8.501
{DOI}: 10.1038/s41597-024-03412-y
{Abstract}: The cold-water species Ophiura sarsii, a brittle star, is a key echinoderm in the Arctic continental shelf region, highly sensitive to climate change. However, the absence of a high-quality genome has hindered a thorough understanding of its adaptive evolution. In this study, we reported the first chromosome-level genome assembly of O. sarsii. The genome assembly totalled 1.57 Gb, encompassing 19 chromosomes with a GC content of 37.11% and a scaffold N50 length of 78.03 Mb. The Benchmarking Universal Single-Copy Orthologs (BUSCO) assessment yielded a completeness estimate of 93.5% for this assembly. We predicted a total of 27,099 protein-coding genes, with 25,079 functionally annotated. The genome was comprised of 58.09% transposable elements. This chromosome-level genome of O. sarsii contributes to our understanding of the origin and evolution of marine organisms.