Evidence map›Paper›PMID 24458431›Full record

ArticleMolecular biology and evolution2014

Possible loss of the chloroplast genome in the parasitic flowering plant Rafflesia lagascae (Rafflesiaceae).

Jeanmaire Molina, Khaled M Hazzouri, Daniel Nickrent, Matthew Geisler, Rachel S Meyer, Melissa M Pentony, Jonathan M Flowers, Pieter Pelser, Julie Barcelona, Samuel Alan Inovejas and 7 more

Open access · bronzeAbstract read
In one paragraph

Article in Molecular biology and evolution, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 110 papers.

0numbers the graph read from it
0cells of the map it votes in
110citing papers in PubMed
28.5field-weighted citation impact, top 1% 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

110 citing papers in PubMed, 310 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Open life sciences · 2025
    Article
  18. Article
  19. Photosynthetic demands on translational machinery drive retention of redundant tRNA metabolism in plant organelles.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  20. Article

50 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

17 authors at 8 institutions in 4 countries.

Jeanmaire MolinaDepartment of Biology, Long Island University, Brooklyn.
Khaled M Hazzouri
Daniel Nickrent
Matthew Geisler
Rachel S Meyer
Melissa M Pentony
Jonathan M Flowers
Pieter Pelser
Julie Barcelona
Samuel Alan Inovejas
Iris Uy
Wei Yuan
Olivia Wilkins
Claire-Iphanise Michel
Selina Locklear
Gisela P Concepcion
Michael D Purugganan
New York University · USLong Island University · USSouthern Illinois University Carbondale · USUniversity of Canterbury · NZUniversity of the Philippines Diliman · PHAlbert Einstein College of Medicine · USNew York University Abu Dhabi · AESt. Luke's Medical Center · PH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Rafflesia is a genus of holoparasitic plants endemic to Southeast Asia that has lost the ability to undertake photosynthesis. With short-read sequencing technology, we assembled a draft sequence of the mitochondrial genome of Rafflesia lagascae Blanco, a species endemic to the Philippine island of Luzon, with ∼350× sequencing depth coverage. Using multiple approaches, however, we were only able to identify small fragments of plastid sequences at low coverage depth (<2×) and could not recover any substantial portion of a chloroplast genome. The gene fragments we identified included photosynthesis and energy production genes (atp, ndh, pet, psa, psb, rbcL), ribosomal RNA genes (rrn16, rrn23), ribosomal protein genes (rps7, rps11, rps16), transfer RNA genes, as well as matK, accD, ycf2, and multiple nongenic regions from the inverted repeats. None of the identified plastid gene sequences had intact reading frames. Phylogenetic analysis suggests that ∼33% of these remnant plastid genes may have been horizontally transferred from the host plant genus Tetrastigma with the rest having ambiguous phylogenetic positions (<50% bootstrap support), except for psaB that was strongly allied with the plastid homolog in Nicotiana. Our inability to identify substantial plastid genome sequences from R. lagascae using multiple approaches--despite success in identifying and developing a draft assembly of the much larger mitochondrial genome--suggests that the parasitic plant genus Rafflesia may be the first plant group for which there is no recognizable plastid genome, or if present is found in cryptic form at very low levels.

Indexed as

Genome, ChloroplastEvolution, MolecularMagnoliopsidaMitochondriaPhotosynthesisPhylogenySequence Analysis, DNAgene lossholoparasitehorizontal gene transferNUPTsplastidTetrastigma

Identifiers

PMID24458431
PMCPMC3969568
OpenAlexW2133354125

What Socratic holds

Textmetadata
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 Socratic graph.