Evidence map›Paper›PMID 22593553›Full record

ArticleGenome biology and evolution2012

Re-evaluating the green versus red signal in eukaryotes with secondary plastid of red algal origin.

Fabien Burki, Pavel Flegontov, Miroslav Oborník, Jaromír Cihlár, Arnab Pain, Julius Lukes, Patrick J Keeling

Open access · goldAbstract read
In one paragraph

Article in Genome biology and evolution, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
5.5field-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

35 citing papers in PubMed, 72 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
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  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Endosymbiosis: The feeling is not mutual.Journal of theoretical biology · 2017
    Article
  11. Article
  12. Article
  13. Article
  14. Probabilistic models of eukaryotic evolution: time for integration.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2015
    Review
  15. Genomic perspectives on the birth and spread of plastids.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
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

7 authors at 4 institutions in 3 countries.

Fabien BurkiCanadian Institute for Advanced Research, Department of Botany, University of British Columbia, Vancouver, Canada.
Pavel Flegontov
Miroslav Oborník
Jaromír Cihlár
Arnab Pain
Julius Lukes
Patrick J Keeling
Czech Academy of Sciences, Biology Centre · CZCanadian Institute for Advanced Research · CAInstitute of Parasitology · CZKing Abdullah University of Science and Technology · SA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The transition from endosymbiont to organelle in eukaryotic cells involves the transfer of significant numbers of genes to the host genomes, a process known as endosymbiotic gene transfer (EGT). In the case of plastid organelles, EGTs have been shown to leave a footprint in the nuclear genome that can be indicative of ancient photosynthetic activity in present-day plastid-lacking organisms, or even hint at the existence of cryptic plastids. Here, we evaluated the impact of EGT on eukaryote genomes by reanalyzing the recently published EST dataset for Chromera velia, an interesting test case of a photosynthetic alga closely related to apicomplexan parasites. Previously, 513 genes were reported to originate from red and green algae in a 1:1 ratio. In contrast, by manually inspecting newly generated trees indicating putative algal ancestry, we recovered only 51 genes congruent with EGT, of which 23 and 9 were of red and green algal origin, respectively, whereas 19 were ambiguous regarding the algal provenance. Our approach also uncovered 109 genes that branched within a monocot angiosperm clade, most likely representing a contamination. We emphasize the lack of congruence and the subjectivity resulting from independent phylogenomic screens for EGT, which appear to call for extreme caution when drawing conclusions for major evolutionary events.

Indexed as

Evolution, MolecularGene Transfer, HorizontalAlveolataChlorophytaPhylogenyPlastidsRhodophytaSymbiosis

Identifiers

PMID22593553
PMCPMC3516247
OpenAlexW2167895185

What OpenQuestion holds

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LicenceCC BY-NC
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.