Evidence map›Paper›PMID 18524785›Full record

ArticleMolecular biology and evolution2008

Frequent, phylogenetically local horizontal transfer of the cox1 group I Intron in flowering plant mitochondria.

M Virginia Sanchez-Puerta, Yangrae Cho, Jeffrey P Mower, Andrew J Alverson, Jeffrey D Palmer

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Molecular biology and evolution, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed
3.7field-weighted citation impact, top 6% 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

72 citing papers in PubMed, 179 citations in OpenAlex.

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  9. Mitochondrial Genome Sequence ofInternational journal of molecular sciences · 2023
    Article
  10. Article
  11. Article
  12. Horizontal Gene Transfers in Plants.Life (Basel, Switzerland) · 2021
    Review
  13. Shifts fromPeerJ · 2021
    Article
  14. Article
  15. Article
  16. Mitochondrial Genome ofPlants (Basel, Switzerland) · 2020
    Article
  17. Article
  18. Article
  19. Article
  20. Article

12 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

5 authors at 2 institutions in 2 countries.

M Virginia Sanchez-PuertaDepartment of Biology, Indiana University, USA. mvs@indiana.edu
Yangrae Cho
Jeffrey P Mower
Andrew J Alverson
Jeffrey D Palmer
Indiana University · USTrinity College Dublin · IE

Funding

Horizontal Gene Transfer in Multicellular EukaryotesR01GM070612 · NIGMS · TRUSTEES OF INDIANA UNIVERSITY · PI PALMER, JEFFREY D · 2005 to 2008
$1.6M
Evolutionary Genomics of Supersized Mitochondrial GenomesF32GM080079 · NIGMS · TRUSTEES OF INDIANA UNIVERSITY · PI ALVERSON, ANDREW J · 2007 to 2009
$148k
NIGMS NIH HHS 1F32GM080079NIGMS NIH HHS F32 GM080079NIGMS NIH HHS R01 GM070612NIGMS NIH HHS R01-GM-70612
6 · The paper itself

Abstract

Horizontal gene transfer is surprisingly common among plant mitochondrial genomes. The first well-established case involves a homing group I intron in the mitochondrial cox1 gene shown to have been frequently acquired via horizontal transfer in angiosperms. Here, we report extensive additional sampling of angiosperms, including 85 newly sequenced introns from 30 families. Analysis of all available data leads us to conclude that, among the 640 angiosperms (from 212 families) whose cox1 intron status has been characterized thus far, the intron has been acquired via roughly 70 separate horizontal transfer events. We propose that the intron was originally seeded into angiosperms by a single transfer from fungi, with all subsequent inferred transfers occurring from one angiosperm to another. The pattern of angiosperm-to-angiosperm transfer is biased toward exchanges between plants belonging to the same family. Illegitimate pollination is proposed as one potential factor responsible for this pattern, given that aberrant, cross-species pollination is more likely between close relatives. Other potential factors include shared vectoring agents or common geographic locations. We report the first apparent cases of loss of the cox1 intron; losses are accompanied by retention of the exonic coconversion tract, which is located immediately downstream of the intron and which is a product of the intron's self-insertion mechanism. We discuss the many reasons why the cox1 intron is so frequently and detectably transferred, and rarely lost, and conclude that it should be regarded as the "canary in the coal mine" with respect to horizontal transfer in angiosperm mitochondria.

Indexed as

Evolution, MolecularPhylogenyBase SequenceCyclooxygenase 1DNA, MitochondrialDNA PrimersGene Transfer, HorizontalIntronsLikelihood FunctionsMagnoliopsidaModels, GeneticMolecular Sequence DataSequence AlignmentSequence Analysis, DNASpecies SpecificityCyclooxygenase 1DNA, MitochondrialDNA Primers

Identifiers

PMID18524785
PMCPMC2727383
OpenAlexW2058572576

What OpenQuestion holds

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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.