Evidence map›Paper›PMID 14504244›Full record

ArticleGenetics2003

A new opaque variant of maize by a single dominant RNA-interference-inducing transgene.

Gregorio Segal, Rentao Song, Joachim Messing

Open access · bronzeAbstract read
In one paragraph

Article in Genetics, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

65 citing papers in PubMed, 230 citations in OpenAlex.

  1. Article
  2. Article
  3. Generation of multi-layered protein bodies inFrontiers in plant science · 2023
    Article
  4. Review
  5. Article
  6. Identification of a new mutant allele ofMolecular breeding : new strategies in plant improvement · 2022
    Article
  7. Article
  8. Article
  9. Functional Markers for Precision Plant Breeding.International journal of molecular sciences · 2020
    Review
  10. The regulation of zein biosynthesis in maize endosperm.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020
    Review
  11. Article
  12. Article
  13. Article
  14. NAC-type transcription factors regulate accumulation of starch and protein in maize seeds.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  15. Review
  16. Article
  17. Article
  18. Engineering sulfur storage in maize seed proteins without apparent yield loss.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  19. Maize endosperm-specific transcription factors O2 and PBF network the regulation of protein and starch synthesis.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  20. Article

5 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.

Gregorio SegalWaksman Institute, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA.
Rentao Song
Joachim Messing
Rutgers, The State University of New Jersey · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In maize, alpha-zeins, the main protein components of seed stores, are major determinants of nutritional imbalance when maize is used as the sole food source. Mutations like opaque-2 (o2) are used in breeding varieties with improved nutritional quality. However, o2 works in a recessive fashion by affecting the expression of a subset of 22-kD alpha-zeins, as well as additional endosperm gene functions. Thus, we sought a dominant mutation that could suppress the storage protein genes without interrupting O2 synthesis. We found that maize transformed with RNA interference (RNAi) constructs derived from a 22-kD zein gene could produce a dominant opaque phenotype. This phenotype segregates in a normal Mendelian fashion and eliminates 22-kD zeins without affecting the accumulation of other zein proteins. A system for regulated transgene expression generating antisense RNA also reduced the expression of 22-kD zein genes, but failed to give an opaque phenotype. Therefore, it appears that small interfering RNAs not only may play an important regulatory role during plant development, but also are effective genetic tools for dissecting the function of gene families. Since the dominant phenotype is also correlated with increased lysine content, the new mutant illustrates an approach for creating more nutritious crop plants.

Indexed as

Genes, DominantRNA InterferenceTransgenesHybridization, GeneticPlants, Genetically ModifiedTranscriptional ActivationZea maysZeinZein

Identifiers

PMID14504244
PMCPMC1462732
OpenAlexW2125882252

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.