Evidence map›Paper›PMID 29511234›Full record

ArticleScientific reports2018

Single-cell RNA sequencing reveals developmental heterogeneity of blastomeres during major genome activation in bovine embryos.

Ilaria Lavagi, Stefan Krebs, Kilian Simmet, Andrea Beck, Valeri Zakhartchenko, Eckhard Wolf, Helmut Blum

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 17% 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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 47 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Species-specific roles of SP1 in bovine and human embryonic genome activation and early embryonic development.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Pre-Implantation Bovine Embryo Evaluation-From Optics to Omics and Beyond.Animals : an open access journal from MDPI · 2023
    Review
  17. Article
  18. Article
  19. Article
  20. 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 3 institutions in 3 countries.

Ilaria LavagiLaboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Munich, Germany.
Stefan KrebsLaboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Munich, Germany.
Kilian SimmetChair of Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, LMU Munich, Munich, Germany.ORCID 0000-0003-2188-3108
Andrea BeckChair of Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, LMU Munich, Munich, Germany.
Valeri ZakhartchenkoChair of Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, LMU Munich, Munich, Germany.
Eckhard WolfLaboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Munich, Germany. ewolf@genzentrum.lmu.de.
Helmut BlumLaboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Munich, Germany. blum@genzentrum.lmu.de.
Ludwig-Maximilians-Universität München · DEGene Therapy Laboratory · FRQuantitative BioSciences · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Embryonic development is initially controlled by maternal RNAs and proteins stored in the oocyte, until gene products gradually generated by the embryo itself take over. Major embryonic genome activation (EGA) in bovine embryos occurs at the eight- to 16-cell stage. Morphological observations, such as size of blastomeres and distribution of microvilli, suggested heterogeneity among individual cells already at this developmental stage. To address cell heterogeneity on the transcriptome level, we performed single-cell RNA sequencing of 161 blastomeres from 14 in vitro produced bovine embryos at Day 2 (n = 6) and Day 3 (n = 8) post fertilization. Complementary DNA libraries were prepared using the Single-Cell RNA-Barcoding and Sequencing protocol and sequenced. Non-supervised clustering of single-cell transcriptome profiles identified six clusters with specific sets of genes. Most embryos were comprised of cells from at least two different clusters. Sorting cells according to their transcriptome profiles resulted in a non-branched pseudo-time line, arguing against major lineage inclination events at this developmental stage. In summary, our study revealed heterogeneity of transcriptome profiles among single cells in bovine Day 2 and Day 3 embryos, suggesting asynchronous blastomere development during the phase of major EGA.

Indexed as

Embryonic DevelopmentGene Expression RegulationSequence Analysis, RNASingle-Cell AnalysisTranscriptional ActivationAnimalsBlastomeresCattleGene LibraryGenetic VariationSequence Analysis, DNATime Factors

Identifiers

PMID29511234
PMCPMC5840315
OpenAlexW2806898975

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.