Evidence map›Paper›PMID 25526368›Full record

ArticleThe ISME journal2015

Fundamental shift in vitamin B12 eco-physiology of a model alga demonstrated by experimental evolution.

Katherine E Helliwell, Sinéad Collins, Elena Kazamia, Saul Purton, Glen L Wheeler, Alison G Smith

Open access · bronzeAbstract read
In one paragraph

Article in The ISME journal, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

40 citing papers in PubMed, 83 citations in OpenAlex.

  1. Article
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  4. Review
  5. Article
  6. Skin-associatedmSphere · 2025
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  8. Skin-associatedbioRxiv : the preprint server for biology · 2024
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  9. A mutualistic bacterium rescues a green alga from an antagonist.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  10. Review
  11. Flexible BProceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Plants (Basel, Switzerland) · 2023
    Review
  17. Article
  18. Article
  19. Vitamin BFundamental research · 2022
    Article
  20. Exploring the onset of BEnvironmental microbiology · 2022
    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

6 authors at 4 institutions in 1 country.

Katherine E HelliwellDepartment of Plant Sciences, University of Cambridge, Cambridge, UK.
Sinéad CollinsInstitute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK.
Elena KazamiaDepartment of Plant Sciences, University of Cambridge, Cambridge, UK.
Saul PurtonInstitute of Structural and Molecular Biology, UCL, London, UK.
Glen L Wheeler1] Plymouth Marine Laboratory, Plymouth, UK [2] Marine Biological Association of UK, The Laboratory, Citadel Hill, Plymouth, UK.
Alison G SmithDepartment of Plant Sciences, University of Cambridge, Cambridge, UK.
University of Cambridge · GBInstitute of Structural and Molecular Biology · GBMarine Biological Association of the United Kingdom · GBUniversity of Edinburgh · GB

Funding

Biotechnology and Biological Sciences Research Council BB/I013164/1
6 · The paper itself

Abstract

A widespread and complex distribution of vitamin requirements exists over the entire tree of life, with many species having evolved vitamin dependence, both within and between different lineages. Vitamin availability has been proposed to drive selection for vitamin dependence, in a process that links an organism's metabolism to the environment, but this has never been demonstrated directly. Moreover, understanding the physiological processes and evolutionary dynamics that influence metabolic demand for these important micronutrients has significant implications in terms of nutrient acquisition and, in microbial organisms, can affect community composition and metabolic exchange between coexisting species. Here we investigate the origins of vitamin dependence, using an experimental evolution approach with the vitamin B(12)-independent model green alga Chlamydomonas reinhardtii. In fewer than 500 generations of growth in the presence of vitamin B(12), we observe the evolution of a B(12)-dependent clone that rapidly displaces its ancestor. Genetic characterization of this line reveals a type-II Gulliver-related transposable element integrated into the B(12)-independent methionine synthase gene (METE), knocking out gene function and fundamentally altering the physiology of the alga.

Indexed as

Vitamin B Complex5-Methyltetrahydrofolate-Homocysteine S-MethyltransferaseBiological EvolutionChlamydomonas reinhardtiiCoculture TechniquesDNA Transposable ElementsMicronutrientsMutationPhenotypeVitamin B 125-Methyltetrahydrofolate-Homocysteine S-MethyltransferaseDNA Transposable ElementsMicronutrientsVitamin B 12Vitamin B Complex

Identifiers

PMID25526368
PMCPMC4430296
OpenAlexW1973597629

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.