Evidence map›Paper›PMID 22689967›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2012

Conserved genetic determinant of motor organ identity in Medicago truncatula and related legumes.

Jianghua Chen, Carol Moreau, Yu Liu, Masayoshi Kawaguchi, Julie Hofer, Noel Ellis, Rujin Chen

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
5.2field-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

33 citing papers in PubMed, 69 citations in OpenAlex.

  1. Article
  2. Article
  3. Bioorganic studies on the nyctinastic leaf-movement of plants.Proceedings of the Japan Academy. Series B, Physical and biological sciences · 2026
    Review
  4. Expression analysis of genes enriched in the pulvinus ofPlant biotechnology (Tokyo, Japan) · 2025
    Article
  5. Article
  6. Article
  7. Mechanism of the Pulvinus-Driven Leaf Movement: An Overview.International journal of molecular sciences · 2024
    Review
  8. Review
  9. Genome-Wide Analysis of theInternational journal of molecular sciences · 2023
    Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Genome-Wide Analysis ofInternational journal of molecular sciences · 2022
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 3 countries.

Jianghua ChenPlant Biology Division, Samuel Roberts Noble Foundation, Ardmore, OK 73401, USA.
Carol Moreau
Yu Liu
Masayoshi Kawaguchi
Julie Hofer
Noel Ellis
Rujin Chen
Noble Research Institute · USJohn Innes Centre · GBAberystwyth University · GBNational Institute for Basic Biology · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Plants exhibit various kinds of movements that have fascinated scientists and the public for centuries. Physiological studies in plants with the so-called motor organ or pulvinus suggest that cells at opposite sides of the pulvinus mediate leaf or leaflet movements by swelling and shrinking. How motor organ identity is determined is unknown. Using a genetic approach, we isolated a mutant designated elongated petiolule1 (elp1) from Medicago truncatula that fails to fold its leaflets in the dark due to loss of motor organs. Map-based cloning indicated that ELP1 encodes a putative plant-specific LOB domain transcription factor. RNA in situ analysis revealed that ELP1 is expressed in primordial cells that give rise to the motor organ. Ectopic expression of ELP1 resulted in dwarf plants with petioles and rachises reduced in length, and the epidermal cells gained characteristics of motor organ epidermal cells. By identifying ELP1 orthologs from other legume species, namely pea (Pisum sativum) and Lotus japonicus, we show that this motor organ identity is regulated by a conserved molecular mechanism.

Indexed as

Base SequenceChromosome MappingCloning, MolecularDNA, ComplementaryGenes, PlantIn Situ HybridizationMedicago truncatulaMicroscopy, Electron, ScanningMolecular Sequence DataMovementPulvinusReal-Time Polymerase Chain ReactionSequence Analysis, DNASpecies SpecificityTranscription FactorsDNA, ComplementaryTranscription Factors

Identifiers

PMID22689967
PMCPMC3406810
OpenAlexW2077883105

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.