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50 million years of genomic stasis in endosymbiotic bacteria.

Publication ,  Journal Article
Tamas, I; Klasson, L; Canbäck, B; Näslund, AK; Eriksson, A-S; Wernegreen, JJ; Sandström, JP; Moran, NA; Andersson, SGE
Published in: Science (New York, N.Y.)
June 2002

Comparison of two fully sequenced genomes of Buchnera aphidicola, the obligate endosymbionts of aphids, reveals the most extreme genome stability to date: no chromosome rearrangements or gene acquisitions have occurred in the past 50 to 70 million years, despite substantial sequence evolution and the inactivation and loss of individual genes. In contrast, the genomes of their closest free-living relatives, Escherichia coli and Salmonella spp., are more than 2000-fold more labile in content and gene order. The genomic stasis of B. aphidicola, likely attributable to the loss of phages, repeated sequences, and recA, indicates that B. aphidicola is no longer a source of ecological innovation for its hosts.

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Published In

Science (New York, N.Y.)

DOI

EISSN

1095-9203

ISSN

0036-8075

Publication Date

June 2002

Volume

296

Issue

5577

Start / End Page

2376 / 2379

Related Subject Headings

  • Symbiosis
  • Species Specificity
  • Salmonella typhimurium
  • Repetitive Sequences, Nucleic Acid
  • Recombination, Genetic
  • Pseudogenes
  • Operon
  • Mutation
  • Molecular Sequence Data
  • Genome, Bacterial
 

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Tamas, I., Klasson, L., Canbäck, B., Näslund, A. K., Eriksson, A.-S., Wernegreen, J. J., … Andersson, S. G. E. (2002). 50 million years of genomic stasis in endosymbiotic bacteria. Science (New York, N.Y.), 296(5577), 2376–2379. https://doi.org/10.1126/science.1071278
Tamas, Ivica, Lisa Klasson, Björn Canbäck, A Kristina Näslund, Ann-Sofie Eriksson, Jennifer J. Wernegreen, Jonas P. Sandström, Nancy A. Moran, and Siv G. E. Andersson. “50 million years of genomic stasis in endosymbiotic bacteria.Science (New York, N.Y.) 296, no. 5577 (June 2002): 2376–79. https://doi.org/10.1126/science.1071278.
Tamas I, Klasson L, Canbäck B, Näslund AK, Eriksson A-S, Wernegreen JJ, et al. 50 million years of genomic stasis in endosymbiotic bacteria. Science (New York, NY). 2002 Jun;296(5577):2376–9.
Tamas, Ivica, et al. “50 million years of genomic stasis in endosymbiotic bacteria.Science (New York, N.Y.), vol. 296, no. 5577, June 2002, pp. 2376–79. Epmc, doi:10.1126/science.1071278.
Tamas I, Klasson L, Canbäck B, Näslund AK, Eriksson A-S, Wernegreen JJ, Sandström JP, Moran NA, Andersson SGE. 50 million years of genomic stasis in endosymbiotic bacteria. Science (New York, NY). 2002 Jun;296(5577):2376–2379.
Journal cover image

Published In

Science (New York, N.Y.)

DOI

EISSN

1095-9203

ISSN

0036-8075

Publication Date

June 2002

Volume

296

Issue

5577

Start / End Page

2376 / 2379

Related Subject Headings

  • Symbiosis
  • Species Specificity
  • Salmonella typhimurium
  • Repetitive Sequences, Nucleic Acid
  • Recombination, Genetic
  • Pseudogenes
  • Operon
  • Mutation
  • Molecular Sequence Data
  • Genome, Bacterial