Evidence map›Paper›PMID 12730157›Full record

ArticleJournal of bacteriology2003

Discordant phylogenies within the rrn loci of Rhizobia.

Peter van Berkum, Zewdu Terefework, Lars Paulin, Sini Suomalainen, Kristina Lindström, Bertrand D Eardly

Abstract readComment
In one paragraph

Article in Journal of bacteriology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
–field-weighted citation impact
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

47 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. A Genomotaxonomy View of theFrontiers in microbiology · 2019
    Article
  7. Article
  8. Article
  9. Article
  10. Permanent Draft Genome Sequence ofGenome announcements · 2017
    Article
  11. Review
  12. High-quality draft genome sequence ofStandards in genomic sciences · 2017
    Article
  13. High-quality permanent draft genome sequence of theStandards in genomic sciences · 2017
    Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Peter van BerkumSoybean Genomics and Improvement Laboratory, Agricultural Research Service, U.S. Department of Agriculture, Beltsville, Maryland 20705, USA. pberkum@ba.ars.usda.gov
Zewdu Terefework
Lars Paulin
Sini Suomalainen
Kristina Lindström
Bertrand D Eardly

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

It is evident from complete genome sequencing results that lateral gene transfer and recombination are essential components in the evolutionary process of bacterial genomes. Since this has important implications for bacterial systematics, the primary objective of this study was to compare estimated evolutionary relationships among a representative set of alpha-Proteobacteria by sequencing analysis of three loci within their rrn operons. Tree topologies generated with 16S rRNA gene sequences were significantly different from corresponding trees assembled with 23S rRNA gene and internally transcribed space region sequences. Besides the incongruence in tree topologies, evidence that distinct segments along the 16S rRNA gene sequences of bacteria currently classified within the genera Bradyrhizobium, Mesorhizobium and Sinorhizobium have a reticulate evolutionary history was also obtained. Our data have important implications for bacterial taxonomy, because currently most taxonomic decisions are based on comparative 16S rRNA gene sequence analysis. Since phylogenetic placement based on 16S rRNA gene sequence divergence perhaps is questionable, we suggest that the proposals of bacterial nomenclature or changes in their taxonomy that have been made may not necessarily be warranted. Accordingly, a more conservative approach should be taken in the future, in which taxonomic decisions are based on the analysis of a wider variety of loci and comparative analytical methods are used to estimate phylogenetic relationships among the genomes under consideration.

Indexed as

DNA, IntergenicPhylogenyRNA, Ribosomal, 16SRNA, Ribosomal, 23SBase SequenceEvolution, MolecularGene ConversionLikelihood FunctionsMolecular Sequence DataPolymerase Chain ReactionPolymorphism, GeneticRecombination, GeneticRhizobiaceaeSequence Homology, Nucleic AcidDNA, IntergenicRNA, Ribosomal, 16SRNA, Ribosomal, 23S

Identifiers

PMID12730157
PMCPMC154066

What OpenQuestion holds

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Registered trials

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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.