Work

Chromosome-level genome assembly of Greenland scurvy-grass (Cochlearia groenlandica) reveals extensive centromeric satellite arrays

Year: 2026

Type: preprint

Abstract: 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.

Source: bioRxiv (Cold Spring Harbor Laboratory)

DOI: 10.64898/2026.11.05.764761

Authors: Ole K. Torresen, Anne Krag Brysting, Bram Danneels, Rhianah Sandean, Spyridon Kollias, Giada Ferrari, Ave Tooming-Klunderud, Levi Yant, Kjetill S Jakobsen

Institutions: University of Oslo, University of Bergen, Swedish University of Agricultural Sciences

Language: English

Topic: Chromosomal and Genetic Variations

Subfield: Genetics

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

Open Access status: green

OpenAlex ID: W7225623732

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