Evidence map›Paper›PMID 11459834›Full record

ArticleGenes & development2001

SWITCH1 (SWI1): a novel protein required for the establishment of sister chromatid cohesion and for bivalent formation at meiosis.

R Mercier, D Vezon, E Bullier, J C Motamayor, A Sellier, F Lefèvre, G Pelletier, C Horlow

Abstract read
In one paragraph

Article in Genes & development, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers.

0numbers the graph read from it
0cells of the map it votes in
78citing papers in PubMed
–field-weighted citation impact
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

78 citing papers in PubMed.

  1. Article
  2. Article
  3. Understanding and harnessing unreduced gametes for crop improvement.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026
    Review
  4. Article
  5. Recent Progress on Plant Apomixis for Genetic Improvement.International journal of molecular sciences · 2024
    Review
  6. Article
  7. Article
  8. Article
  9. Engineering apomixis in crops.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023
    Review
  10. Review
  11. ApomicticFrontiers in plant science · 2023
    Article
  12. Article
  13. The Inactivation of ArabidopsisPlants (Basel, Switzerland) · 2021
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Review

18 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

8 authors.

R MercierStation de Génétique et d'Amélioration des Plantes, Institut National de la Recherche Agronomique, Route de Saint-Cyr, 78026 Versailles cedex, France. rmercier@versailles.inra.fr
D Vezon
E Bullier
J C Motamayor
A Sellier
F Lefèvre
G Pelletier
C Horlow

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We have characterized a new gene, SWI1, involved in sister chromatid cohesion during both male and female meiosis in Arabidopsis thaliana. A first allele, swi1.1, was obtained as a T-DNA tagged mutant and was described previously as abnormal exclusively in female meiosis. We have isolated a new allele, swi1.2, which is defective for both male and female meiosis. In swi1.2 male meiosis, the classical steps of prophase were not observed, especially because homologs do not synapse. Chromatid arms and centromeres lost their cohesion in a stepwise manner before metaphase I, and 20 chromatids instead of five bivalents were seen at the metaphase plate, which was followed by an aberrant segregation. In contrast, swi1.2 female meiocytes performed a mitotic-like division instead of meiosis, indicating a distinct role for SWI1 or a different effect of the loss of SWI1 function in both processes. The SWI1 gene was cloned; the putative SWI1 protein did not show strong similarity to any known protein. Plants transformed with a SWI1-GFP fusion indicated that SWI1 protein is present in meiocyte nuclei, before meiosis and at a very early stage of prophase. Thus, SWI1 appears to be a novel protein involved in chromatid cohesion establishment and in chromosome structure during meiosis, but with clear differences between male and female meiosis.

Indexed as

Arabidopsis ProteinsAllelesAmino Acid SequenceArabidopsisCell Cycle ProteinsCentromereChromatidsChromosomal Proteins, Non-HistoneGametogenesisMeiosisMolecular Sequence DataNuclear ProteinsPlant ProteinsArabidopsis ProteinsCell Cycle ProteinsChromosomal Proteins, Non-HistoneNuclear ProteinsPlant ProteinsSWI1 protein, Arabidopsis

Identifiers

PMID11459834
PMCPMC312743

What OpenQuestion holds

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Read underepoch 390

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.