# The genome sequence of the roach, Rutilus rutilus (Linnaeus, 1758) (Cypriniformes: Leuciscidae)

**Authors:** Bernd Hänfling, Richard Pitman, Andy D. Nunn, Josephine R Paris, Alejandro S. Mechaly, Jayan Duminda M Senevirathna

PMC · DOI: 10.12688/wellcomeopenres.25081.1 · Wellcome Open Research · 2025-11-06

## TL;DR

Scientists sequenced the genome of the roach fish, identifying its genes and assembling most of it into chromosomes.

## Contribution

The study provides a high-quality genome assembly and gene annotation for Rutilus rutilus as part of a broader biodiversity project.

## Key findings

- The genome assembly is 1,100.18 megabases long with 99.56% scaffolded into 25 chromosomal pseudomolecules.
- The mitochondrial genome is 16.61 kilobases long and was also assembled.
- Ensembl annotation identified 25,358 protein-coding genes in the genome.

## Abstract

We present a genome assembly from an individual
Rutilus rutilus (Roach; Chordata; Actinopteri; Cypriniformes; Leuciscidae). The genome sequence has a total length of 1 100.18 megabases. Most of the assembly (99.56%) is scaffolded into 25 chromosomal pseudomolecules. The mitochondrial genome has also been assembled, with a length of 16.61 kilobases. Gene annotation of this assembly on Ensembl identified 25 358 protein-coding genes. This assembly was generated as part of the Darwin Tree of Life project, which produces reference genomes for eukaryotic species found in Britain and Ireland.

## Linked entities

- **Species:** Rutilus rutilus (taxon 48668)

## Full-text entities

- **Species:** Rutilus frisii (Black Sea roach, species) [taxon 54563], Rutilus rutilus (roach minnow, species) [taxon 48668]

## Full text

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## Figures

6 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12789864/full.md

## References

45 references — full list in the complete paper: https://tomesphere.com/paper/PMC12789864/full.md

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Source: https://tomesphere.com/paper/PMC12789864