Evidence map›Paper›PMID 14729913›Full record

ArticleThe Plant cell2004

Extensive maternal DNA hypomethylation in the endosperm of Zea mays.

Massimiliano Lauria, Mary Rupe, Mei Guo, Erhard Kranz, Raul Pirona, Angelo Viotti, Gertrud Lund

Open access · bronzeAbstract read
In one paragraph

Article in The Plant cell, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
4.8field-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

42 citing papers in PubMed, 104 citations in OpenAlex.

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  10. Postzygotic reproductive isolation established in the endosperm: mechanisms, drivers and relevance.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021
    Review
  11. Article
  12. Epigenomic landscape and epigenetic regulation in maize.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020
    Review
  13. Article
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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 5 institutions in 4 countries.

Massimiliano LauriaPlant Biochemistry Laboratory, Department of Plant Biology, Royal Veterinary and Agricultural University, DK-1871 Frederiksberg C, Denmark.
Mary Rupe
Mei Guo
Erhard Kranz
Raul Pirona
Angelo Viotti
Gertrud Lund
Pioneer Hi-Bred · USIstituto di Biologia e Biotecnologia Agraria · ITIstituto Sperimentale per la Zootecnia · ITUniversität Hamburg · DEUniversity of Copenhagen · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A PCR-based genomic scan has been undertaken to estimate the extent and ratio of maternally versus paternally methylated DNA regions in endosperm, embryo, and leaf of Zea mays (maize). Analysis of several inbred lines and their reciprocal crosses identified a large number of conserved, differentially methylated DNA regions (DMRs) that were specific to the endosperm. DMRs were hypomethylated at specific methylation-sensitive restriction sites upon maternal transmission, whereas upon paternal transmission, the methylation levels were similar to those observed in embryo and leaf. Maternal hypomethylation was extensive and offers a likely explanation for the 13% reduction in methyl-cytosine content of the endosperm compared with leaf tissue. DMRs showed identity to expressed genic regions, were observed early after fertilization, and maintained at a later stage of endosperm development. The implications of extensive maternal hypomethylation with respect to endosperm development and epigenetic reprogramming will be discussed.

Indexed as

DNA MethylationBinding SitesBlotting, SouthernCloning, MolecularConserved SequenceDeoxyribonuclease HpaIIDNA, PlantMolecular Sequence DataPlant LeavesPolymorphism, Restriction Fragment LengthSeedsSequence Analysis, DNAZea maysDeoxyribonuclease HpaIIDNA, Plant

Identifiers

PMID14729913
PMCPMC341920
OpenAlexW2135066621

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.