Evidence map›Paper›PMID 33093479›Full record

ArticleScientific reports2020

Rescue of germ cells in dnd crispant embryos opens the possibility to produce inherited sterility in Atlantic salmon.

Hilal Güralp, Kai O Skaftnesmo, Erik Kjærner-Semb, Anne Hege Straume, Lene Kleppe, Rüdiger W Schulz, Rolf B Edvardsen, Anna Wargelius

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
4.8field-weighted citation impact, top 4% 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

21 citing papers in PubMed, 77 citations in OpenAlex.

  1. Review
  2. The DNA mismatch repair protein Msh4 is essential for meiosis of male but not for female in zebrafish.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2026
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  10. 3 Biotech · 2024
    Review
  11. A homology guide for Pacific salmon genusEcology and evolution · 2023
    Article
  12. Article
  13. Article
  14. Article
  15. Spinyhead Croaker Germ Cells GeneLife (Basel, Switzerland) · 2022
    Article
  16. Biotechnology can help us save the genetic heritage of salmon and other aquatic species.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  17. Article
  18. Review
  19. The Piwil1 N domain is required for germ cell survival in Atlantic salmon.Frontiers in cell and developmental biology · 2022
    Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 3 countries.

Hilal GüralpInstitute of Marine Research, Bergen, Norway.
Kai O SkaftnesmoInstitute of Marine Research, Bergen, Norway.
Erik Kjærner-SembInstitute of Marine Research, Bergen, Norway.
Anne Hege StraumeInstitute of Marine Research, Bergen, Norway.
Lene KleppeInstitute of Marine Research, Bergen, Norway.
Rüdiger W SchulzInstitute of Marine Research, Bergen, Norway.
Rolf B EdvardsenInstitute of Marine Research, Bergen, Norway.
Anna WargeliusInstitute of Marine Research, Bergen, Norway. anna.wargelius@imr.no.
Norwegian Institute of Marine Research · NOUtrecht University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Genetic introgression of escaped farmed Atlantic salmon (Salmo salar) into wild populations is a major environmental concern for the salmon aquaculture industry. Using sterile fish in commercial aquaculture operations is, therefore, a sustainable strategy for bio-containment. So far, the only commercially used methodology for producing sterile fish is triploidization. However, triploid fish are less robust. A novel approach in which to achieve sterility is to produce germ cell-free salmon, which can be accomplished by knocking out the dead-end (dnd) gene using CRISPR-Cas9. The lack of germ cells in the resulting dnd crispants, thus, prevents reproduction and inhibits subsequent large-scale production of sterile fish. Here, we report a rescue approach for producing germ cells in Atlantic salmon dnd crispants. To achieve this, we co-injected the wild-type (wt) variant of salmon dnd mRNA together with CRISPR-Cas9 constructs targeting dnd into 1-cell stage embryos. We found that rescued one-year-old fish contained germ cells, type A spermatogonia in males and previtellogenic primary oocytes in females. The method presented here opens a possibility for large-scale production of germ-cell free Atlantic salmon offspring through the genetically sterile broodstock which can pass the sterility trait on the next generation.

Indexed as

FisheriesGerm CellsAnimalsCRISPR-Cas SystemsFemaleGenetic IntrogressionInfertilityMaleOocytesQuantitative Trait, HeritableRNA-Binding ProteinsSalmo salarSpermatogoniaTriploidyRNA-Binding Proteins

Identifiers

PMID33093479
PMCPMC7581530
OpenAlexW3093957858

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

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.