Evidence map›Paper›PMID 8177222›Full record

ArticleMolecular & general genetics : MGG1994

The evolutionary origin of the 35 kb circular DNA of Plasmodium falciparum: new evidence supports a possible rhodophyte ancestry.

D H Williamson, M J Gardner, P Preiser, D J Moore, K Rangachari, R J Wilson

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Molecular & general genetics : MGG, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing 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

32 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. The apicoplast: now you see it, now you don't.International journal for parasitology · 2017
    Review
  7. Review
  8. The search for the missing link: a relic plastid in Perkinsus?International journal for parasitology · 2011
    Review
  9. The apicoplast.Protoplasma · 2011
    Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. The endosymbiotic origin, diversification and fate of plastids.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2010
    Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article
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.

D H WilliamsonNational Institute for Medical Research, The Ridgeway, Mill Hill, London, UK.
M J Gardner
P Preiser
D J Moore
K Rangachari
R J Wilson

Funding

Medical Research Council MC_U117532072
6 · The paper itself

Abstract

In common with other Apicomplexan parasites, Plasmodium falciparum carries two extrachromosomal DNAs, one of which, the 6 kb element, is undoubtedly mitochondrial. The second, generally referred to as the 35 kb circle, is of unknown provenance, but the nature and organization of its genetic content makes a mitochondrial association unlikely and the molecule has features reminiscent of plastid genomes. We now report the occurrence on the circle of an open reading frame specifying a predicted 470 amino acid protein that shares more than 50% identity with a gene currently known only on the plastome of red algae. This high degree of conservation confirms the 35 kb circle's plastid ancestry, and we speculate that it may have originated from the rhodoplast of an ancient red algal endosymbiont in the progenitor of the Apicomplexa.

Indexed as

PhylogenyPlastidsAmino Acid SequenceAnimalsBase SequenceConsensus SequenceDNA, CircularDNA, ProtozoanExtrachromosomal InheritanceGenes, PlantGenes, ProtozoanMolecular Sequence DataOpen Reading FramesPlant ProteinsPlasmodium falciparumRhodophytaDNA, CircularDNA, ProtozoanPlant Proteins

Identifiers

PMID8177222

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.