Chromosome-level de novo genome assembly of wild, anoxia-tolerant crucian carp, Carassius carassius

Abstract Crucian carp (Carassius carassius), a member of the carp family (Cyprinidae), is known for its remarkable anoxia tolerance. The physiological responses and adaptations to anoxia are well documented, but there is a need for better understanding of the molecular regulation and evolutionary me...

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Main Authors: Laura Marian Valencia-Pesqueira, Siv Nam Khang Hoff, Ole K. Tørresen, Sissel Jentoft, Sjannie Lefevre
Format: Article
Language:English
Published: Nature Portfolio 2025-03-01
Series:Scientific Data
Online Access:https://doi.org/10.1038/s41597-025-04813-3
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author Laura Marian Valencia-Pesqueira
Siv Nam Khang Hoff
Ole K. Tørresen
Sissel Jentoft
Sjannie Lefevre
author_facet Laura Marian Valencia-Pesqueira
Siv Nam Khang Hoff
Ole K. Tørresen
Sissel Jentoft
Sjannie Lefevre
author_sort Laura Marian Valencia-Pesqueira
collection DOAJ
description Abstract Crucian carp (Carassius carassius), a member of the carp family (Cyprinidae), is known for its remarkable anoxia tolerance. The physiological responses and adaptations to anoxia are well documented, but there is a need for better understanding of the molecular regulation and evolutionary mechanisms behind these adaptations. Here we present a high-quality, functionally annotated, chromosome-level genome assembly that can facilitate such further studies. Genomic DNA was obtained from a wild-caught crucian carp specimen and used for PacBio long-read, Illumina short-read and Hi-C sequencing. Short-read mRNA data were used for structural annotation using the BRAKER3 pipeline, while PacBio long-read RNA sequencing data were used for annotation of untranslated regions and refinement of gene-isoform relationships, using the PASA pipeline. The full assembly had a contig-level N50 of 15Mbp in 290 scaffolds and 98.6% of the total length (1.65Gbp) placed in 50 chromosomes. Structural annotation resulted in 82,557 protein-coding transcripts (in 45,667 genes), with a BUSCO completeness of 99.6% and of which 77,370 matched a protein in the UniProtKB/Swiss-Prot database.
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issn 2052-4463
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spelling doaj-art-7b0136364a67474e82647182db4e7ba92025-08-20T02:10:20ZengNature PortfolioScientific Data2052-44632025-03-0112111410.1038/s41597-025-04813-3Chromosome-level de novo genome assembly of wild, anoxia-tolerant crucian carp, Carassius carassiusLaura Marian Valencia-Pesqueira0Siv Nam Khang Hoff1Ole K. Tørresen2Sissel Jentoft3Sjannie Lefevre4Section for Physiology and Cell Biology, Department of Biosciences, University of OsloCentre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of OsloCentre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of OsloCentre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of OsloSection for Physiology and Cell Biology, Department of Biosciences, University of OsloAbstract Crucian carp (Carassius carassius), a member of the carp family (Cyprinidae), is known for its remarkable anoxia tolerance. The physiological responses and adaptations to anoxia are well documented, but there is a need for better understanding of the molecular regulation and evolutionary mechanisms behind these adaptations. Here we present a high-quality, functionally annotated, chromosome-level genome assembly that can facilitate such further studies. Genomic DNA was obtained from a wild-caught crucian carp specimen and used for PacBio long-read, Illumina short-read and Hi-C sequencing. Short-read mRNA data were used for structural annotation using the BRAKER3 pipeline, while PacBio long-read RNA sequencing data were used for annotation of untranslated regions and refinement of gene-isoform relationships, using the PASA pipeline. The full assembly had a contig-level N50 of 15Mbp in 290 scaffolds and 98.6% of the total length (1.65Gbp) placed in 50 chromosomes. Structural annotation resulted in 82,557 protein-coding transcripts (in 45,667 genes), with a BUSCO completeness of 99.6% and of which 77,370 matched a protein in the UniProtKB/Swiss-Prot database.https://doi.org/10.1038/s41597-025-04813-3
spellingShingle Laura Marian Valencia-Pesqueira
Siv Nam Khang Hoff
Ole K. Tørresen
Sissel Jentoft
Sjannie Lefevre
Chromosome-level de novo genome assembly of wild, anoxia-tolerant crucian carp, Carassius carassius
Scientific Data
title Chromosome-level de novo genome assembly of wild, anoxia-tolerant crucian carp, Carassius carassius
title_full Chromosome-level de novo genome assembly of wild, anoxia-tolerant crucian carp, Carassius carassius
title_fullStr Chromosome-level de novo genome assembly of wild, anoxia-tolerant crucian carp, Carassius carassius
title_full_unstemmed Chromosome-level de novo genome assembly of wild, anoxia-tolerant crucian carp, Carassius carassius
title_short Chromosome-level de novo genome assembly of wild, anoxia-tolerant crucian carp, Carassius carassius
title_sort chromosome level de novo genome assembly of wild anoxia tolerant crucian carp carassius carassius
url https://doi.org/10.1038/s41597-025-04813-3
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