Evidence map›Paper›PMID 17919328›Full record

ArticleGenome biology2007

Host origin of plastid solute transporters in the first photosynthetic eukaryotes.

Heather M Tyra, Marc Linka, Andreas P M Weber, Debashish Bhattacharya

Open access · goldAbstract read
In one paragraph

Article in Genome biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed
3.9field-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

58 citing papers in PubMed, 121 citations in OpenAlex.

  1. Review
  2. Article
  3. Genomes of nitrogen-fixing eukaryotes reveal an alternate path for organellogenesis.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  4. Review
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  6. TheeLife · 2024
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  8. microPublication biology · 2024
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  9. Review
  10. Euglenozoan kleptoplasty illuminates the early evolution of photoendosymbiosis.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  11. Article
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  13. Article
  14. Why is primary endosymbiosis so rare?The New phytologist · 2021
    Review
  15. Article
  16. Review
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  18. Review
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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.

Heather M TyraDepartment of Biological Sciences and Roy J Carver Center for Comparative Genomics, 446 Biology Building, University of Iowa, Iowa City, IA 52242-1324, USA. heather-tyra@uiowa.edu
Marc Linka
Andreas P M Weber
Debashish Bhattacharya
University of Iowa · USHeinrich Heine University Düsseldorf · DEMichigan State University · US

Funding

Developing genomic resources:the toxic dinoflagellateR01ES013679 · NIEHS · UNIVERSITY OF IOWA · PI BHATTACHARYA, DEBASHISH · 2006 to 2008
$1.1M
NIEHS NIH HHS R01 ES013679NIEHS NIH HHS R01 ES013679-01
6 · The paper itself

Abstract

backgroundIt is generally accepted that a single primary endosymbiosis in the Plantae (red, green (including land plants), and glaucophyte algae) common ancestor gave rise to the ancestral photosynthetic organelle (plastid). Plastid establishment necessitated many steps, including the transfer and activation of endosymbiont genes that were relocated to the nuclear genome of the 'host' followed by import of the encoded proteins into the organelle. These innovations are, however, highly complex and could not have driven the initial formation of the endosymbiosis. We postulate that the re-targeting of existing host solute transporters to the plastid fore-runner was critical for the early success of the primary endosymbiosis, allowing the host to harvest endosymbiont primary production.

resultsWe tested this model of transporter evolution by conducting a comprehensive analysis of the plastid permeome in Arabidopsis thaliana. Of 137 well-annotated transporter proteins that were initially considered, 83 that are broadly distributed in Plantae were submitted to phylogenetic analysis. Consistent with our hypothesis, we find that 58% of Arabidopsis transporters, including all carbohydrate transporters, are of host origin, whereas only 12% arose from the cyanobacterial endosymbiont. Four transporter genes are derived from a Chlamydia-like source, suggesting that establishment of the primary plastid likely involved contributions from at least two prokaryotic sources.

conclusionOur results indicate that the existing plastid solute transport system shared by Plantae is derived primarily from host genes. Important contributions also came from the cyanobacterial endosymbiont and Chlamydia-like bacteria likely co-resident in the first algae.

Indexed as

Evolution, MolecularModels, BiologicalPhylogenySymbiosisArabidopsisBayes TheoremCarrier ProteinsCluster AnalysisCyanobacteriaLikelihood FunctionsModels, GeneticPlastidsCarrier Proteins

Identifiers

PMID17919328
PMCPMC2246286
OpenAlexW2152341556

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.