Chinese Journal of Oceanology and Limnology

, Volume 30, Issue 2, pp 269–278

Construction of two selectable markers for integrative/conjugative plasmids in Flavobacterium columnare

  • Jin Zhang (张金)
  • Hong Zou (邹红)
  • Liangfa Wang (王良发)
  • Bei Huang (黄贝)
  • Nan Li (李楠)
  • Guitang Wang (王桂堂)
  • Pin Nie (聂品)
Biology

DOI: 10.1007/s00343-012-1077-z

Cite this article as:
Zhang, J., Zou, H., Wang, L. et al. Chin. J. Ocean. Limnol. (2012) 30: 269. doi:10.1007/s00343-012-1077-z

Abstract

Flavobacterium columnare, the etiological agent of columnaris disease, is one of the most important and widespread bacterial pathogens of freshwater fish. In this study, we constructed two artificial selectable markers (chloramphenicol and spectinomycin resistance) for gene transfer in F. columnare. These two new artificial selectable markers, which were created by placing the chloramphenicol or spectinomycin resistance gene under the control of the native acs regulatory region of F. columnare, were functional in both F. columnare and Escherichia coli. The integrative/conjugative plasmids constructed by using these markers were introduced into F. columnare G4 via electroporation or conjugation. The integrated plasmid DNA was confirmed by Southern blotting and PCR analysis. These two markers can be employed in future investigations into gene deletion and the pathogenicity of virulence factors in F. columnare.

Keyword

Flavobacterium columnare selectable marker integrative/conjugative plasmid gene disruption 

Abbreviations

PCR

polymerase chain reaction

OMP

outer membrane protein

SCF

specific chromosome fragment

Copyright information

© Chinese Society for Oceanology and Limnology, Science Press and Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Jin Zhang (张金)
    • 1
    • 2
  • Hong Zou (邹红)
    • 1
  • Liangfa Wang (王良发)
    • 1
  • Bei Huang (黄贝)
    • 1
  • Nan Li (李楠)
    • 1
  • Guitang Wang (王桂堂)
    • 1
  • Pin Nie (聂品)
    • 1
  1. 1.State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of HydrobiologyChinese Academy of SciencesWuhanChina
  2. 2.Graduate University of Chinese Academy of SciencesBeijingChina