Chromosome-level genome assembly and annotation of the cold-water species Ophiura sarsii

Chen Han, Qian Zhang, Yixuan Li, Yuyao Sun, Yue Dong, Meiling Ge, Zhong Li, Xuying Hu, Bing Liu, Xuelei Zhang, Zongling Wang, Qinzeng Xu*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

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.

Original languageEnglish
Article number560
Number of pages9
JournalScientific data
Volume11
Issue number1
DOIs
Publication statusPublished - 30 May 2024

Scopus Subject Areas

  • Statistics and Probability
  • Information Systems
  • Education
  • Computer Science Applications
  • Statistics, Probability and Uncertainty
  • Library and Information Sciences

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