Evidence map›Paper›PMID 21209414›Full record

ArticleBiology of reproduction2011

Expression of variant ribosomal RNA genes in mouse oocytes and preimplantation embryos.

Motomasa Ihara, Hung Tseng, Richard M Schultz

Abstract readComparative Study
In one paragraph

Article in Biology of reproduction, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
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

5 citing papers in PubMed.

  1. Assessing Human Ribosomal DNA Variation and Its Association With Phenotypic Outcomes.BioEssays : news and reviews in molecular, cellular and developmental biology · 2025
    Review
  2. Article
  3. Review
  4. Article
  5. Article
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

3 authors.

Motomasa IharaDepartment of Biology, University of Pennsylvania, 433 South University Ave., Philadelphia, PA 19104, USA.
Hung Tseng
Richard M Schultz

Funding

Basonuclin and Ribosome Biogenesis in Mouse Oocyte and EmbryoR21HD058136 · NICHD · UNIVERSITY OF PENNSYLVANIA · PI SCHULTZ, RICHARD MORRIS · 2009 to 2010
$431k
NICHD NIH HHS HD058136NICHD NIH HHS R21 HD058136
6 · The paper itself

Abstract

Ribosomal DNA (rDNA) is not composed of multiple copies of identical transcription units, as commonly believed, but rather of at least seven rDNA variant subtypes that are expressed in somatic cells. This finding raises the possibility that ribosome function may be modulated as proposed by the ribosome filter hypothesis. We report here that mouse oocytes and preimplantation embryos express all the rDNA variants except variant V and that there is no marked developmental change in the qualitative pattern of variant expression. The maternal and embryonic ribosome pools are therefore quite similar, minimizing the likelihood that developmental changes in composition of the ribosome population are critical for preimplantation development.

Indexed as

Gene Expression Regulation, DevelopmentalGenetic VariationAnimalsBlastocystDNA, RibosomalEctogenesisFemaleMaleMiceMice, Inbred StrainsMolecular WeightOocytesPromoter Regions, GeneticReverse Transcriptase Polymerase Chain ReactionRibosomesRNA, RibosomalDNA, RibosomalRNA, Ribosomal

Identifiers

PMID21209414
PMCPMC3080420

What OpenQuestion holds

Textmetadata
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.