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Volume 7, Issue 6

Complete genome and comparative analysis of pv. isolated from northern Thailand Open Access

Abstract

Rice (.) is a vital global crop with a predominant presence in Asia, including Thailand. However, it faces a significant threat from bacterial blight disease, primarily caused by pv (). This research aims to provide valuable insights into the genetic virulence factors and genomic variations of strains isolated in Thailand. Furthermore, we present the first complete genomic database of Thai , offering a comprehensive resource for studying pathogen diversity, tracking virulence evolution and supporting disease management strategies in rice production. Our phylogenetic analysis unveils that the 20 Thai strains align with the Asian strains, setting them apart from African and US strains. Remarkably, the average identity values, in comparison with type strain 35933 (XO35933), consistently exceed 99%. These strains can be classified into three assigned ribosomal sequence types. Our investigation into the pangenome and the phylogenetic relationships of these 20 genomes reveals a diverse genetic landscape, with the pangenome comprising 11,872 orthologous gene clusters, of which roughly 30% form the core genome. Notably, all of these genomes exhibit a clustered regularly interspaced short palindromic repeats-Cas I-C array, indicative of their adaptive immune mechanisms. All strains belonged to BXO1 type LPS cassette with high identity. Furthermore, our analysis identifies two distinct types of plasmids, namely, pv. strain GX01 plasmid pXOCgx01 (A46, A57, A83, A112, D and E) and the strain AH28 plasmid pAH28 (A97). This genomic resource will be valuable for advancing research on surveillance, prevention, management and comparative studies of this critical pathogen in the future.

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): diversity , genome , Thailand , virulence , Xanthomonas oryzae and Xanthomonas oryzae pv. oryzae (Xoo)
Funding
This study was supported by the:
  • Institut Penyelidikan dan Kemajuan Pertanian Malaysia (Award HRD65050081)
    • Principle Award Recipient: AtiradaBoondech
  • Naresuan University (R2565B003) (Award R2565B003)
    • Principle Award Recipient: NIRANAEKSIRI
© 2025 The Authors
  • This is an open-access article distributed under the terms of the Creative Commons Attribution License.
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2025-06-30
2025-07-10
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Complete genome and comparative analysis of Xanthomonas oryzae pv. oryzae isolated from northern Thailand
Access Microbiology 7, 000986.v4 (2025); https://doi.org/10.1099/acmi.0.000986.v4
/content/journal/acmi/10.1099/acmi.0.000986.v4
/content/journal/acmi/10.1099/acmi.0.000986.v4
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