Chromosome-level genome assembly of Greenland scurvy-grass (Cochlearia groenlandica) reveals extensive centromeric satellite arrays
We present a chromosome-level, haplotype-resolved genome assembly from Greenland scurvy-grass (Cochlearia groenlandica). The assembly comprises two pseudo-haplotypes of 322 Mb and 295 Mb, with 89.7% and 95.6% respectively, each scaffolded into 7 chromosomes. Assembly completeness is high (BUSCO 97.8% in each haplotype), with 34,213 and 29,684 annotated protein-coding genes for haplotypes one and two, respectively. The chromosomes contain extensive centromeric satellite arrays that cover up to half of some chromosomes. Their precise functional boundaries remain undetermined.
Authors
- Kjetill S. Jakobsen (ORCID: https://orcid.org/0000-0002-8861-5397)
- Levi J Yant (ORCID: https://orcid.org/0000-0003-3442-0217)
- Ole K. Tørresen (ORCID: https://orcid.org/0000-0002-1932-8212)
- Bram Danneels (ORCID: https://orcid.org/0000-0001-7446-8325)
- Anne Krag Brysting (ORCID: https://orcid.org/0000-0003-0388-4406)
- Ave Tooming‐Klunderud (ORCID: https://orcid.org/0009-0008-0057-2873)
- Giada Ferrari (ORCID: https://orcid.org/0000-0002-0850-1518)
- Rhianah Sandean (ORCID: https://orcid.org/0009-0002-0962-4701)
- S Kollias
Institutions
- University of Oslo (NO)
- Swedish University of Agricultural Sciences (SE)
- University of Bergen (NO)
Publication Details
- Journal
- bioRxiv (Cold Spring Harbor Laboratory)
- Published
- 2026-11-09
- DOI
- https://doi.org/10.64898/2026.11.05.764761
- Primary Topic
- Chromosomal and Genetic Variations
- Type
- preprint