Evidence map›Paper›PMID 22529976›Full record

ArticlePloS one2012

Reference gene selection for quantitative real-time PCR normalization in Quercus suber.

Liliana Marum, Andreia Miguel, Cândido P Ricardo, Célia Miguel

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in PloS one, 2012. 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 56 papers.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed
4.4field-weighted citation impact, top 5% 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

56 citing papers in PubMed, 106 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Transcriptomic and physiological responses ofFrontiers in plant science · 2024
    Article
  5. Article
  6. Article
  7. Effects of Donor Ages and Propagation Methods on Seedling Growth ofInternational journal of molecular sciences · 2023
    Article
  8. Article
  9. Article
  10. Multiomics Molecular Research into the Recalcitrant and OrphanInternational journal of molecular sciences · 2022
    Review
  11. Article
  12. Genetic Transformation ofPlants (Basel, Switzerland) · 2022
    Article
  13. Article
  14. Article
  15. The Dynamics of Flower Development inPlants (Basel, Switzerland) · 2021
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

4 authors at 3 institutions in 2 countries.

Liliana MarumInstituto de Biologia Experimental e Tecnológica/ Instituto de Tecnologia Química e Biológica-Universidade Nova de Lisboa, Oeiras, Portugal. marum@itqb.unl.pt
Andreia Miguel
Cândido P Ricardo
Célia Miguel
Universidade Nova de Lisboa · PTInstituto de Biologia Experimental e Tecnológica · PTUniversity of New England · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The use of reverse transcription quantitative PCR technology to assess gene expression levels requires an accurate normalization of data in order to avoid misinterpretation of experimental results and erroneous analyses. Despite being the focus of several transcriptomics projects, oaks, and particularly cork oak (Quercus suber), have not been investigated regarding the identification of reference genes suitable for the normalization of real-time quantitative PCR data. In this study, ten candidate reference genes (Act, CACs, EF-1α, GAPDH, His3, PsaH, Sand, PP2A, ß-Tub and Ubq) were evaluated to determine the most stable internal reference for quantitative PCR normalization in cork oak. The transcript abundance of these genes was analysed in several tissues of cork oak, including leaves, reproduction cork, and periderm from branches at different developmental stages (1-, 2-, and 3-year old) or collected in different dates (active growth period versus dormancy). The three statistical methods (geNorm, NormFinder, and CV method) used in the evaluation of the most suitable combination of reference genes identified Act and CACs as the most stable candidates when all the samples were analysed together, while ß-Tub and PsaH showed the lowest expression stability. However, when different tissues, developmental stages, and collection dates were analysed separately, the reference genes exhibited some variation in their expression levels. In this study, and for the first time, we have identified and validated reference genes in cork oak that can be used for quantification of target gene expression in different tissues and experimental conditions and will be useful as a starting point for gene expression studies in other oaks.

Indexed as

Gene Expression ProfilingGene Expression Regulation, PlantQuercusReal-Time Polymerase Chain ReactionReference StandardsReproducibility of ResultsRNA, PlantRNA, Plant

Identifiers

PMID22529976
PMCPMC3329553
OpenAlexW2031716788

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.