LI Huirong, YU Yong, CHEN Bo, ZENG Yinxin, REN Daming. Molecular genetic diversity of bacteria in the bottom section of arctic sea ice from the Canada Basin[J]. Acta Oceanologica Sinica, 2005, (6): 153-161.
Citation: LI Huirong, YU Yong, CHEN Bo, ZENG Yinxin, REN Daming. Molecular genetic diversity of bacteria in the bottom section of arctic sea ice from the Canada Basin[J]. Acta Oceanologica Sinica, 2005, (6): 153-161.

Molecular genetic diversity of bacteria in the bottom section of arctic sea ice from the Canada Basin

  • Received Date: 2005-07-26
  • Rev Recd Date: 2005-10-23
  • PCR-DGGE approach was used to analyze bacterial diversity in the bottom section of seven arctic sea ice samples colleted from the Canada Basin. Thirty-two 16S rDNA sequences were obtained from prominent DGGE bands. The closest relatives of these sequences are found to be those of cultivated or uncultured bacteria from antarctic or arctic sea ice. Phylogenetic analysis clustered these sequences or phylotypes within α-proteobacteria, γ-proteobacteria and CFB (cytophaga-flexibacter-bacteroides) group. Sequences belonging to γ-proteobacteria were dominant and members of the CFB group were highly abundant. It was suggested that the CFB group was the representative of the bottom section of sea ice samples.
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