Evidence map›Paper›PMID 32782385›Full record

ArticleScientific reports2020

CRISPR/Cas12a mediated knock-in of the Polled Celtic variant to produce a polled genotype in dairy cattle.

Felix Schuster, Patrick Aldag, Antje Frenzel, Klaus-Gerd Hadeler, Andrea Lucas-Hahn, Heiner Niemann, Björn Petersen

Open 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. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

19 citing papers in PubMed, 41 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Welfare of beef cattle.EFSA journal. European Food Safety Authority · 2025
    Article
  6. Review
  7. Article
  8. Review
  9. Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. A deletion at the polled PScientific reports · 2022
    Article
  15. Article
  16. Review
  17. Article
  18. Genome Editing in Livestock, Complicity, and the Technological Fix Objection.Journal of agricultural & environmental ethics · 2021
    Article
  19. Review
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

7 authors at 2 institutions in 1 country.

Felix SchusterInstitute of Farm Animal Genetics, Friedrich-Loeffler-Institute, Hoeltystrasse 10, 31535, Neustadt am Rübenberge, Germany.
Patrick AldagInstitute of Farm Animal Genetics, Friedrich-Loeffler-Institute, Hoeltystrasse 10, 31535, Neustadt am Rübenberge, Germany.
Antje FrenzelInstitute of Farm Animal Genetics, Friedrich-Loeffler-Institute, Hoeltystrasse 10, 31535, Neustadt am Rübenberge, Germany.
Klaus-Gerd HadelerInstitute of Farm Animal Genetics, Friedrich-Loeffler-Institute, Hoeltystrasse 10, 31535, Neustadt am Rübenberge, Germany.
Andrea Lucas-HahnInstitute of Farm Animal Genetics, Friedrich-Loeffler-Institute, Hoeltystrasse 10, 31535, Neustadt am Rübenberge, Germany.
Heiner NiemannDepartment of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, 30625, Hannover, Germany.
Björn PetersenInstitute of Farm Animal Genetics, Friedrich-Loeffler-Institute, Hoeltystrasse 10, 31535, Neustadt am Rübenberge, Germany. bjoern.petersen@fli.de.
Friedrich-Loeffler-Institut · DEMedizinische Hochschule Hannover · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In modern livestock farming horned cattle pose an increased risk of injury for each other as well as for the farmers. Dehorning without anesthesia is associated with stress and pain for the calves and raises concerns regarding animal welfare. Naturally occurring structural variants causing polledness are known for most beef cattle but are rare within the dairy cattle population. The most common structural variant in beef cattle consists of a 202 base pair insertion-deletion (Polled Celtic variant). For the generation of polled offspring from a horned Holstein-Friesian bull, we isolated the Polled Celtic variant from the genome of an Angus cow and integrated it into the genome of fibroblasts taken from the horned bull using the CRISPR/Cas12a system (formerly Cpf1). Modified fibroblasts served as donor cells for somatic cell nuclear transfer and reconstructed embryos were transferred into synchronized recipients. One resulting pregnancy was terminated on day 90 of gestation for the examination of the fetus. Macroscopic and histological analyses proved a polled phenotype. The remaining pregnancy was carried to term and delivered one calf with a polled phenotype which died shortly after birth. In conclusion, we successfully demonstrated the practical application of CRISPR/Cas12a in farm animal breeding and husbandry.

Indexed as

BreedingMutationPolymorphism, Single NucleotideAnimalsCattleCRISPR-Cas SystemsDairyingDNA-Binding ProteinsFemaleFibroblastsGenotypeHornsMalePhenotypePregnancyDNA-Binding Proteins

Identifiers

PMID32782385
PMCPMC7419524
OpenAlexW3048925091

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.