Evidence map›Paper›PMID 14715901›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2004

Mitochondrial DNA sequences reveal the photosynthetic relatives of Rafflesia, the world's largest flower.

Todd J Barkman, Seok-Hong Lim, Kamarudin Mat Salleh, Jamili Nais

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
9.6field-weighted citation impact, top 2% 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

21 citing papers in PubMed, 95 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Developmental origins of the world's largest flowers, Rafflesiaceae.Proceedings of the National Academy of Sciences of the United States of America · 2013
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Diversity and evolution of floral structure among early diverging lineages in the Ericales.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2010
    Article
  15. Comparative evolution of flower and fruit morphology.Proceedings. Biological sciences · 2009
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Mitochondrial substitution rates are extraordinarily elevated and variable in a genus of flowering plants.Proceedings of the National Academy of Sciences of the United States of America · 2004
    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

4 authors at 3 institutions in 2 countries.

Todd J BarkmanDepartment of Biological Sciences, Western Michigan University, Kalamazoo, MI 49008, USA. tbarkman@wmich.edu
Seok-Hong Lim
Kamarudin Mat Salleh
Jamili Nais
Western Michigan University · USNational University of Malaysia · MYSabah Parks · MY

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

All parasites are thought to have evolved from free-living ancestors. However, the ancestral conditions facilitating the shift to parasitism are unclear, particularly in plants because the phylogenetic position of many parasites is unknown. This is especially true for Rafflesia, an endophytic holoparasite that produces the largest flowers in the world and has defied confident phylogenetic placement since its discovery >180 years ago. Here we present results of a phylogenetic analysis of 95 species of seed plants designed to infer the position of Rafflesia in an evolutionary context using the mitochondrial gene matR (1,806 aligned base pairs). Overall, the estimated phylogenetic tree is highly congruent with independent analyses and provides a strongly supported placement of Rafflesia with the order Malpighiales, which includes poinsettias, violets, and passionflowers. Furthermore, the phylogenetic placement of Mitrastema, another enigmatic, holoparasitic angiosperm with the order Ericales (which includes blueberries and persimmons), was obtained with these data. Although traditionally classified together, Rafflesia and Mitrastema are only distantly related, implying that their endoparasitic habits result from convergent evolution. Our results indicate that the previous significant difficulties associated with phylogenetic placement of holoparasitic plants may be overcome by using mitochondrial DNA so that a broader understanding of the origins and evolution of parasitism may emerge.

Indexed as

DNA, MitochondrialDNA, PlantEvolution, MolecularFlowersHost-Parasite InteractionsMagnoliopsidaMolecular Sequence DataPhotosynthesisPhylogenyDNA, MitochondrialDNA, Plant

Identifiers

PMID14715901
PMCPMC321759
OpenAlexW2116288037

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.