Evidence map›Paper›PMID 9352932›Full record

ArticleJournal of bacteriology1997

Origin and evolution of group I introns in cyanobacterial tRNA genes.

B Paquin, S D Kathe, S A Nierzwicki-Bauer, D A Shub

Open access · greenAbstract readComparative Study
In one paragraph

Article in Journal of bacteriology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

36 citing papers in PubMed, 78 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. The essential gene set of a photosynthetic organism.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Horizontal gene transfer of the algal nuclear gene psbO to the photosynthetic sea slug Elysia chlorotica.Proceedings of the National Academy of Sciences of the United States of America · 2008
    Article
  18. Article
  19. Article
  20. 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 1 institution in 1 country.

B PaquinDepartment of Biological Sciences and Center for Molecular Genetics, University at Albany-SUNY, New York 12222, USA.
S D Kathe
S A Nierzwicki-Bauer
D A Shub
University at Albany, State University of New York · US

Funding

REGULATION AND EVOLUTION OF PHAGE INTRONS &INTRON-ORFSR01GM037746 · NIGMS · STATE UNIVERSITY OF NEW YORK AT ALBANY · PI SHUB, DAVID A · 1987 to 1998
–
NIGMS NIH HHS GM37746
6 · The paper itself

Abstract

Many tRNA(Leu)UAA genes from plastids contain a group I intron. An intron is also inserted in the same gene at the same position in cyanobacteria, the bacterial progenitors of plastids, suggesting an ancient bacterial origin for this intron. A group I intron has also been found in the tRNA(fMet) gene of some cyanobacteria but not in plastids, suggesting a more recent origin for this intron. In this study, we investigate the phylogenetic distributions of the two introns among cyanobacteria, from the earliest branching to the more derived species. The phylogenetic distribution of the tRNA(Leu)UAA intron follows the clustering of rRNA sequences, being either absent or present in clades of closely related species, with only one exception in the Pseudanabaena group. Our data support the notion that the tRNA(Leu)UAA intron was inherited by cyanobacteria and plastids through a common ancestor. Conversely, the tRNA(fMet) intron has a sporadic distribution, implying that many gains and losses occurred during cyanobacterial evolution. Interestingly, a phylogenetic tree inferred from intronic sequences clearly separates the different tRNA introns, suggesting that each family has its own evolutionary history.

Indexed as

Evolution, MolecularGenes, BacterialIntronsConserved SequenceCyanobacteriaMolecular Sequence DataNucleic Acid ConformationPhylogenyPolymerase Chain ReactionRNA, RibosomalRNA, TransferRNA, Transfer, LeuRNA, Transfer, MetSequence Homology, Nucleic AcidSpecies SpecificityfMet-tRNA(fMet)RNA, RibosomalRNA, TransferRNA, Transfer, LeuRNA, Transfer, Met

Identifiers

PMID9352932
PMCPMC179611
OpenAlexW2112389572

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.