Evidence map›Paper›PMID 17082872›Full record

ArticlePlant molecular biology2007

Heterosis associated gene expression in maize embryos 6 days after fertilization exhibits additive, dominant and overdominant pattern.

Stephanie Meyer, Heike Pospisil, Stefan Scholten

Abstract read
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In one paragraph

Article in Plant molecular biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed
6.6field-weighted citation impact, top 3% 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

61 citing papers in PubMed, 152 citations in OpenAlex.

  1. Review
  2. Review
  3. DNA methylation in plant heterosis: mechanisms and prospects.Functional & integrative genomics · 2025
    Review
  4. Article
  5. Molecular dissection of heterosis in cereal roots and their rhizosphere.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023
    Review
  6. Epigenetic Changes Occurring in Plant Inbreeding.International journal of molecular sciences · 2023
    Review
  7. Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Exploitation of Heterosis in Pearl Millet: A Review.Plants (Basel, Switzerland) · 2020
    Review
  14. Article
  15. Article
  16. Article
  17. Dynamic patterns of circular and linear RNAs in maize hybrid and parental lines.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020
    Article
  18. Article
  19. Article
  20. Article

1 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

3 authors at 1 institution in 1 country.

Stephanie MeyerBiocenter Klein Flottbek and Botanical Garden, Developmental Biology and Biotechnology, University of Hamburg, Ohnhorststrasse 18, 22609 Hamburg, Germany.
Heike Pospisil
Stefan Scholten
Universität Hamburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Heterosis is important for conventional plant breeding and is intensively used to increase the productivity of crop plants. Genetic processes shortly after fertilization might be of particular importance with respect to heterosis, because coordination of the diverse genomes establishes a basis for future performance of the sporophyte. Here we demonstrate a strong crossbreeding advantage of hybrid maize embryos as early as 6 days after fertilization in a modern maize hybrid and provide the first embryo specific analysis of associated gene expression pattern at this early stage of development. We identified differentially expressed genes between hybrid embryos and the parental genotypes by a combined approach of suppression subtractive hybridization and differential screening by microarray hybridizations. Association of heterosis in embryos with genes related to signal transduction and other regulatory processes was implied by the enrichment of these functional classes among the identified gene set. Quantitative RT-PCR analysis validated the expression pattern of 7 of 12 genes analysed and revealed predominantly additive, but also dominant and overdominant expression patterns in hybrid embryos. These patterns indicate that gene regulatory interactions among parental alleles act at this early developmental stage and the genes identified provide entry points for the exploration of gene regulatory networks associated with the specification of the phenomenon heterosis in the plant life cycle.

Indexed as

Genes, PlantBase SequenceDNA, PlantGene Expression Regulation, DevelopmentalGene Expression Regulation, PlantGenes, DominantGenotypeHybrid VigorMolecular Sequence DataReverse Transcriptase Polymerase Chain ReactionZea maysDNA, Plant

Identifiers

PMID17082872
OpenAlexW2157144572

What OpenQuestion holds

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Registered trials

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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.