The genome sequence of Xanthomonas oryzae pathovar oryzae KACC10331, the bacterial blight pathogen of rice

Byoung Moo Lee, Young Jin Park, Dong Suk Park, Hee Wan Kang, Jeong Gu Kim, Eun Sung Song, In Cheol Park, Ung Han Yoon, Jang Ho Hahn, Bon Sung Koo, Gil Bok Lee, Hyungtae Kim, Hyun Seok Park, Kyong Oh Yoon, Jeong Hyun Kim, Chol Hee Jung, Nea Hyung Koh, Jeong Sun Seo, Seung Joo Go

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The nucleotide sequence was determined for the genome of Xanthomonas oryzae pathovar oryzae (Xoo) KACC10331, a bacterium that causes bacterial blight in rice (Oryza sativa L.). The genome is comprised of a single, 4 941 439 bp, circular chromosome that is G + C rich (63.7%). The genome includes 4637 open reading frames (ORFs) of which 3340 (72.0%) could be assigned putative function. Orthologs for 80% of the predicted Xoo genes were found in the previously reported X.axonopodis pv. citri (Xac) and X.campestris pv. campestris (Xcc) genomes, but 245 genes apparently specific to Xoo were identified. Xoo genes likely to be associated with pathogenesis include eight with similarity to Xanthomonas avirulence (avr) genes, a set of hypersensitive reaction and pathogenicity (hrp) genes, genes for exopolysaccharide production, and genes encoding extracellular plant cell wall-degrading enzymes. The presence of these genes provides insights into the interactions of this pathogen with its gramineous host.

Original languageEnglish
Pages (from-to)577-586
Number of pages10
JournalNucleic Acids Research
Issue number2
StatePublished - 2005

Bibliographical note

Funding Information:
We thank Dr S. H. Choi for kindly providing the strain of Xoo, and Prof. J. E. Leach at Colorado State University and Prof. S. W. Hutcheson at University of Maryland for stimulating discussions and proofreading of the manuscript. Project funding was from the BioGreen21 Foundation under Rural Development Administration, Korea. Funding to pay the Open Access publication charges for this article was provided by National Institute of Agricultural Biotechnology.


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