Cited by 213Genomics and Phylogenetic StudiesGenome Rearrangement AlgorithmsChromosomal and Genetic Variations

Evolution of gene order conservation in prokaryotes

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Tamames, Javier·2001·Genome Biology

Abstract

BACKGROUND: As more complete genomes are sequenced, conservation of gene order between different organisms is emerging as an informative property of the genomes. Conservation of gene order has been used for predicting function and functional interactions of proteins, as well as for studying the evolutionary relationships between genomes. The reasons for the maintenance of gene order are still not well understood, as the organization of the prokaryote genome into operons and lateral gene transfer cannot possibly account for all the instances of conservation found. Comprehensive studies of gene order are one way of elucidating the nature of these maintaining forces. RESULTS: Gene order is extensively conserved between closely related species, but rapidly becomes less conserved among more distantly related organisms, probably in a cooperative fashion. This trend could be universal in prokaryotic genomes, as archaeal genomes are likely to behave similarly to bacterial genomes. Gene order conservation could therefore be used as a valid phylogenetic measure to study relationships between species. Even between very distant species, remnants of gene order conservation exist in the form of highly conserved clusters of genes. This suggests the existence of selective processes that maintain the organization of these regions. Because the clusters often span more than one operon, common regulation probably cannot be invoked as the cause of the maintenance of gene order. CONCLUSIONS: Gene order conservation is a genomic measure that can be useful for studying relationships between prokaryotes and the evolutionary forces shaping their genomes. Gene organization is extensively conserved in some genomic regions, and further studies are needed to elucidate the reason for this conservation.

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Crossref · 10.1186/gb-2001-2-6-research0020

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  • Genome architecture/gene locality is often significantly conserved in related organisms.

    “In conjunction with this, biological insight into genome locality (i.e., operonal or transcription unit structure) of related bacterial organisms can assist in clarifying the function of unknown JCVI-syn3A genes since genome architecture/gene locality is often significantly conserved in related organisms.47,48”

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Research works printed but not linked: 4

  1. Ayala JA Garrido T de Pedro MA Vicente M New Comprehensive Biochemistry, Vol 27: Bacterial Cell Wall London; Elsevier Science: 1994 73 101
  2. Andersson JO Is Buchnera a bacterium or an organelle? Curr Biol 2000 10 R866 R868 11114534
  3. Roth JR Benson N Galitski T Haack K Lawrence JG Miesel L Rearrangements of the bacterial chromosome: formation and applications. In Escherichia coli and Salmonella typhimurium Edited by Neidhardt FC, Curtiss R, Ingraham JL, Lin ECC, Brooks Low K, Magasanik B, Reznikoff WS, Riley M, Schaechter M, Umbarger HE Washington DC: ASM Press; 1996
  4. Tamames J Ouzounis C Casari G Valencia A EUCLID: Automatic classification of proteins in functional classes by their database annotations. Bioinformatics 1996 14 542 543 9694995

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Authors
Tamames, J.
Affiliations
Consejo Superior de Investigaciones Científicas (ES)
Corresponding author
Tamames, Javier
Venue
Genome Biology
Published
2001-06-01
Volume
2
Issue
6
Pages
RESEARCH0020-RESEARCH0020
ISSN
  • 1465-6906 (ISSN-L)
  • 1474-760X
OpenAlex
W1598176384
Cited by
213
References
29
Citations by year
2026: 4 · 2025: 8 · 2024: 3 · 2023: 3 · 2022: 5 · 2021: 5 · 2020: 8 · 2019: 4 · 2018: 4 · 2017: 5 · 2016: 8 · 2015: 3 · 2014: 12 · 2013: 12 · 2012: 8
FWCI
3.27
Type
journal article
Language
en
Open access
Locations
  • Genome biology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion, other-oa)
Funders
Centro Nacional de Biotecnología
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Phylogenetic Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genome Rearrangement Algorithms
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Chromosomal and Genetic Variations
Keywords
gene order conservation, prokaryotic genomes, genome organization, gene clusters, operon, horizontal gene transfer, archaeal genomes, genome evolution, gene expression regulation
MeSH terms
Phylogeny, Genome, Bacterial, Conserved Sequence, Evolution, Molecular, Genome, Archaeal, Gene Order

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