Evidence map›Paper›PMID 31687752›Full record

ArticleGenome biology and evolution2019

A High-Quality Assembly of the Nine-Spined Stickleback (Pungitius pungitius) Genome.

Srinidhi Varadharajan, Pasi Rastas, Ari Löytynoja, Michael Matschiner, Federico C F Calboli, Baocheng Guo, Alexander J Nederbragt, Kjetill S Jakobsen, Juha Merilä

Open access · goldAbstract read
In one paragraph

Article in Genome biology and evolution, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
3.8field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

49 citing papers in PubMed, 87 citations in OpenAlex.

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  20. Fast satellite DNA evolution in Nothobranchius annual killifishes.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 5 countries.

Srinidhi VaradharajanDepartment of Biology, Centre for Ecological and Evolutionary Synthesis, University of Oslo, Norway.
Pasi RastasEcological Genetics Research Unit, Research Programme in Organismal and Evolutionary Biology, Faculty of Biological and Environmental Sciences, University of Helsinki, Finland.
Ari LöytynojaInstitute of Biotechnology, University of Helsinki, Finland.
Michael MatschinerDepartment of Biology, Centre for Ecological and Evolutionary Synthesis, University of Oslo, Norway.
Federico C F CalboliEcological Genetics Research Unit, Research Programme in Organismal and Evolutionary Biology, Faculty of Biological and Environmental Sciences, University of Helsinki, Finland.
Baocheng GuoEcological Genetics Research Unit, Research Programme in Organismal and Evolutionary Biology, Faculty of Biological and Environmental Sciences, University of Helsinki, Finland.
Alexander J NederbragtDepartment of Biology, Centre for Ecological and Evolutionary Synthesis, University of Oslo, Norway.
Kjetill S JakobsenDepartment of Biology, Centre for Ecological and Evolutionary Synthesis, University of Oslo, Norway.
Juha MeriläEcological Genetics Research Unit, Research Programme in Organismal and Evolutionary Biology, Faculty of Biological and Environmental Sciences, University of Helsinki, Finland.
University of Helsinki · FIUniversity of Oslo · NOInstitute of Zoology · CNUniversity of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Gasterosteidae fish family hosts several species that are important models for eco-evolutionary, genetic, and genomic research. In particular, a wealth of genetic and genomic data has been generated for the three-spined stickleback (Gasterosteus aculeatus), the "ecology's supermodel," whereas the genomic resources for the nine-spined stickleback (Pungitius pungitius) have remained relatively scarce. Here, we report a high-quality chromosome-level genome assembly of P. pungitius consisting of 5,303 contigs (N50 = 1.2 Mbp) with a total size of 521 Mbp. These contigs were mapped to 21 linkage groups using a high-density linkage map, yielding a final assembly with 98.5% BUSCO completeness. A total of 25,062 protein-coding genes were annotated, and about 23% of the assembly was found to consist of repetitive elements. A comprehensive analysis of repetitive elements uncovered centromere-specific tandem repeats and provided insights into the evolution of retrotransposons. A multigene phylogenetic analysis inferred a divergence time of about 26 million years ago (Ma) between nine- and three-spined sticklebacks, which is far older than the commonly assumed estimate of 13 Ma. Compared with the three-spined stickleback, we identified an additional duplication of several genes in the hemoglobin cluster. Sequencing data from populations adapted to different environments indicated potential copy number variations in hemoglobin genes. Furthermore, genome-wide synteny comparisons between three- and nine-spined sticklebacks identified chromosomal rearrangements underlying the karyotypic differences between the two species. The high-quality chromosome-scale assembly of the nine-spined stickleback genome obtained with long-read sequencing technology provides a crucial resource for comparative and population genomic investigations of stickleback fishes and teleosts.

Indexed as

GenomeAnimalsDNA Transposable ElementsEvolution, MolecularFemaleFish ProteinsHemoglobinsMaleMicrosatellite RepeatsMolecular Sequence AnnotationPerciformesPhylogenyRecombination, GeneticDNA Transposable ElementsFish ProteinsHemoglobinscomparative genomicsgenome assemblyPungitius pungitiusstickleback

Identifiers

PMID31687752
PMCPMC7145574
OpenAlexW2985735518

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.