Evidence map›Paper›PMID 12566582›Full record

ArticleThe Plant cell2003

Duplicated fie genes in maize: expression pattern and imprinting suggest distinct functions.

Olga N Danilevskaya, Pedro Hermon, Sabine Hantke, Michael G Muszynski, Krishna Kollipara, Evgueni V Ananiev

Open access · bronzeAbstract read
In one paragraph

Article in The Plant cell, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed
13.4field-weighted citation impact, top 1% 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

79 citing papers in PubMed, 195 citations in OpenAlex.

  1. Article
  2. Identification of thePlants (Basel, Switzerland) · 2026
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  15. 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
  16. Gene Expression in Parthenogenic Maize Proembryos.Plants (Basel, Switzerland) · 2021
    Article
  17. Article
  18. Article
  19. Epigenomic landscape and epigenetic regulation in maize.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020
    Review
  20. Article

19 more citing papers are in PubMed but not listed here.

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

6 authors at 1 institution in 1 country.

Olga N DanilevskayaPioneer Hi-Bred International, Inc., 7250 NW 62nd Avenue, Johnston, Iowa 50131, USA. olga.danilevskaya@pioneer.com
Pedro Hermon
Sabine Hantke
Michael G Muszynski
Krishna Kollipara
Evgueni V Ananiev
Pioneer Hi-Bred · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Two maize genes with predicted translational similarity to the Arabidopsis FIE (Fertilization-Independent Endosperm) protein, a repressor of endosperm development in the absence of fertilization, were cloned and analyzed. Genomic sequences of fie1 and fie2 show significant homology within coding regions but none within introns or 5' upstream. The fie1 gene is expressed exclusively in the endosperm of developing kernels starting at approximately 6 days after pollination. fie1 is an imprinted gene showing no detectable expression of the paternally derived fie1 allele during kernel development. Conversely, fie2 is expressed in the embryo sac before pollination. After pollination, its expression persists, predominantly in the embryo and at lower levels in the endosperm. The paternal fie2 allele is not expressed early in kernel development, but its transcription is activated at 5 days after pollination. fie2 is likely to be a functional ortholog of the Arabidopsis FIE gene, whereas fie1 has evolved a distinct function. The maize FIE2 and sorghum FIE proteins form a monophyletic group, sharing a closer relationship to each other than to the FIE1 protein, suggesting that maize fie genes originated from two different ancestral genomes.

Indexed as

Arabidopsis ProteinsAllelesBase SequenceGene Expression ProfilingGene Expression Regulation, DevelopmentalGene Expression Regulation, PlantGenes, DuplicateIn Situ HybridizationMolecular Sequence DataPhylogenyPlant ProteinsRepressor ProteinsSeedsZea maysArabidopsis ProteinsFIE protein, ArabidopsisPlant ProteinsRepressor Proteins

Identifiers

PMID12566582
PMCPMC141211
OpenAlexW2113286083

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.