Evidence map›Paper›PMID 1600142›Full record

ArticlePlant molecular biology1992

Evolution of the plastid ribosomal RNA operon in a nongreen parasitic plant: accelerated sequence evolution, altered promoter structure, and tRNA pseudogenes.

K H Wolfe, D S Katz-Downie, C W Morden, J D Palmer

Abstract read
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In one paragraph

Article in Plant molecular biology, 1992. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
7.0field-weighted citation impact, top 3% 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

19 citing papers in PubMed, 30 citations in OpenAlex.

  1. Review
  2. Article
  3. PhytoKeys · 2022
    Article
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  7. Article
  8. Article
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  12. Chloroplast ribosomes and protein synthesis.Microbiological reviews · 1994
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Function and evolution of a minimal plastid genome from a nonphotosynthetic parasitic plant.Proceedings of the National Academy of Sciences of the United States of America · 1992
    Article
  18. Article
  19. 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.

K H WolfeDepartment of Biology, Indiana University, Bloomington 47405.
D S Katz-Downie
C W Morden
J D Palmer
Indiana University Bloomington · US

Funding

TRANSFER OF ORGANELLE GENES TO THE NUCLEUSR01GM035087 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI PALMER, JEFFREY D · 1985 to 2004
$1.8M
NIGMS NIH HHS GM 35087
6 · The paper itself

Abstract

The nucleotide sequence of a 7.4 kb region containing the entire plastid ribosomal RNA operon of the nongreen parasitic plant Epifagus virginiana has been determined. Analysis of the sequence indicates that all four rRNA genes are intact and almost certainly functional. In contrast, the split genes for tRNA(Ile) and tRNA(Ala) present in the 16S-23S rRNA spacer region have become pseudogenes, and deletion upstream of the 16S rRNA gene has removed a tRNA(Val) gene and most of the promoter region for the rRNA operon. The rate of nucleotide substitution in 16S and 23S rRNAs is several times higher in Epifagus than in tobacco, a related photosynthetic plant. Possible reasons for this, including relaxed translational constraints, are discussed.

Indexed as

Base SequenceBiological EvolutionChloroplastsDNA, RibosomalMolecular Sequence DataOperonOrganellesPlantsPromoter Regions, GeneticPseudogenesRNA, RibosomalRNA, Ribosomal, 16SRNA, Ribosomal, 23SRNA, TransferDNA, RibosomalRNA, RibosomalRNA, Ribosomal, 16SRNA, Ribosomal, 23SRNA, Transfer

Identifiers

PMID1600142
OpenAlexW2046429609

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.