Genomics & Informatics

Korea Genome Organization (한국유전체학회)
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Phylogeny of Flavobacteria Group Isolated from Freshwater Using Multilocus Sequencing Analysis

  • Mun, Seyoung (Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University) ;
  • Lee, Jungnam (Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University) ;
  • Lee, Siwon (Plant Quarantine Technology Center, Animal and Plant Quarantine Agency) ;
  • Han, Kyudong (Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University) ;
  • Ahn, Tae-Young (Department of Microbiology, Dankook University)
  • Received : 2013.10.03
  • Accepted : 2013.11.16
  • Published : 2013.12.31
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Abstract

Sequence analysis of the 16S rRNA gene has been widely used for the classification of microorganisms. However, we have been unable to clearly identify five Flavobacterium species isolated from a freshwater by using the gene as a single marker, because the evolutionary history is incomplete and the pace of DNA substitutions is relatively rapid in the bacteria. In this study, we tried to classify Flavobacterium species through multilocus sequence analysis (MLSA), which is a practical and reliable technique for the identification or classification of bacteria. The five Flavobacterium species isolated from freshwater and 37 other strains were classified based on six housekeeping genes: gyrB, dnaK, tuf, murG, atpA, and glyA. The genes were amplified by PCR and subjected to DNA sequencing. Based on the combined DNA sequence (4,412 bp) of the six housekeeping genes, we analyzed the phylogenetic relationship among the Flavobacterium species. The results indicated that MLSA, based on the six housekeeping genes, is a trustworthy method for the identification of closely related Flavobacterium species.

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References

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