The Brucellasuis genome reveals fundamental similarities between animal and plant pathogens and symbionts

  1. Ian T. Paulsen*,,,
  2. Rekha Seshadri*,
  3. Karen E. Nelson*,
  4. Jonathan A. Eisen*,,
  5. John F. Heidelberg*,
  6. Timothy D. Read*,
  7. Robert J. Dodson*,
  8. Lowell Umayam*,
  9. Lauren M. Brinkac*,
  10. Maureen J. Beanan*,
  11. Sean C. Daugherty*,
  12. Robert T. Deboy*,
  13. A. Scott Durkin*,
  14. James F. Kolonay*,
  15. Ramana Madupu*,
  16. William C. Nelson*,
  17. Bola Ayodeji*,
  18. Margaret Kraul*,
  19. Jyoti Shetty*,
  20. Joel Malek*,
  21. Susan E. Van Aken*,
  22. Steven Riedmuller*,
  23. Herve Tettelin*,
  24. Steven R. Gill*,
  25. Owen White*,
  26. Steven L. Salzberg*,,
  27. David L. Hoover§,
  28. Luther E. Lindler§,
  29. Shirley M. Halling,
  30. Stephen M. Boyle, and
  31. Claire M. Fraser*,**
  1. *The Institute for Genomic Research, 9712 Medical Center Drive, Rockville, MD 20850; Johns Hopkins University, Charles and 34th Streets, Baltimore, MD 21218; §Division of Communicable Diseases and Immunology, Walter Reed Army Institute of Research, Silver Spring, MD 20910; National Animal Disease Center, Agricultural Research Service, U.S. Department of Agriculture, Ames, IA 50010-0070; Center for Molecular Medicine and Infectious Diseases, Virginia–Maryland Regional College of Veterinary Medicine, Virginia Tech, Blacksburg, VA 24061; and **George Washington University School of Medicine, Departments of Pharmacology and Microbiology and Tropical Medicine, 2300 Eye Street NW, Washington, DC 20037
  1. Edited by Harley W. Moon, Iowa State University, Ames, IA, and approved July 30, 2002 (received for review May 28, 2002)

Abstract

The 3.31-Mb genome sequence of the intracellular pathogen and potential bioterrorism agent, Brucella suis, was determined. Comparison of B. suis with Brucella melitensis has defined a finite set of differences that could be responsible for the differences in virulence and host preference between these organisms, and indicates that phage have played a significant role in their divergence. Analysis of the B. suis genome reveals transport and metabolic capabilities akin to soil/plant-associated bacteria. Extensive gene synteny between B. suis chromosome 1 and the genome of the plant symbiont Mesorhizobium loti emphasizes the similarity between this animal pathogen and plant pathogens and symbionts. A limited repertoire of genes homologous to known bacterial virulence factors were identified.

Footnotes

  • To whom reprint requests should be addressed. E-mail: ipaulsen{at}tigr.org.

  • This paper was submitted directly (Track II) to the PNAS office.

  • Data deposition: The sequences reported in this paper have been deposited in the GenBank database [accession nos. AE014291 (Chr I) and AE014292 (Chr II)].

  • See commentary on page 12503.

  • Abbreviations:
    Chr,
    chromosome;
    IS,
    insertion sequence
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