The Genomics of Xanthomonas oryzae

  • Lindsay Triplett
  • Ralf Koebnik
  • Valerie Verdier
  • Jan E. LeachEmail author


Xanthomonas oryzae pathovars oryzae and oryzicola cause bacterial leaf blight and bacterial leaf streak of rice, respectively, two diseases that pose a significant threat to global rice yields. The first four complete genome sequences of X. oryzae strains yielded a wealth of information about virulence factor content, mobile genetic elements, and taxonomic differences among strains of X. oryzae pathovars oryzae and oryzicola. The genomes have been applied in systematic studies of gene function and expression and in comparative analyses of the differences between pathovars. X. oryzae genome sequences facilitated the current understanding of the evolutionary history and diversity of type III secreted effectors, including transcriptional activator-like (TAL) effectors, and contributed to the discovery of the code-mediating TAL effector recognition specificity. The genomes have also been instrumental in the development of improved tools for epidemiological typing and disease diagnostics. This chapter focuses on the contributions of genomic sequencing projects to the understanding of X. oryzae biology and diversity and the future questions that genomics will help address.


Insertion Sequence Bacterial Blight NRPS Gene Diffusible Signal Factor Xanthomonas Species 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Lindsay Triplett
    • 1
  • Ralf Koebnik
    • 2
  • Valerie Verdier
    • 1
    • 2
  • Jan E. Leach
    • 1
    Email author
  1. 1.Department of Bioagricultural Sciences and Pest Management and Program in Plant Molecular BiologyColorado State UniversityFort CollinsUSA
  2. 2.Institut de Recherche pour le Développement, UMR Résistance des Plantes aux Bioagresseurs, IRD-CIRAD-UM2Montpellier Cedex 5France

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