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Characteristics of rDNA intergenic spacer region from a waterbloom cyanobacteria species Oscillatoria sp.
作者姓名:CHEN Yueqin  HE Jiawan  TANG Shaoqing
作者单位:State Key Laboratory for Biocontrol, School of Life Sciences, Zhongshan University, Guangzhou 510275, China,Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China,State Key Laboratory for Biocontrol, School of Life Sciences, Zhongshan University, Guangzhou 510275, China
摘    要:Sequence of rDNA intergenic spacer region (ISR) from a waterbloom cyanobacterial species Oscilla-toria sp. was determined and analyzed. The results of sequence comparison showed that the spacer had a high level sequence divergence, suggesting the sequence may be a target sequence for developing cyanobacteria genus- and species-specific oligonucleotide probes. In addition, a 20bp sequence of rDNA ISR was found highly conserved in all species of cyanobacteria, which was not found in other eubacteria. This conserved sequence within a variable region indicates that it might be a functional oligonucleotide in the processing of the rRNA precursor.

关 键 词:Oscillatoria  sp.    rDNA  intergenic  spacer  region    sequence  analysis.

Characteristics of rDNA intergenic spacer region from a waterbloom cyanobacteria species Oscillatoria sp.
CHEN Yueqin,HE Jiawan,TANG Shaoqing.Characteristics of rDNA intergenic spacer region from a waterbloom cyanobacteria species Oscillatoria sp.[J].Progress in Natural Science,2000,10(1):37-39.
Authors:CHEN Yueqin  HE Jiawan  TANG Shaoqing
Institution:State Key Laboratory for Biocontrol, School of Life Sciences, Zhongshan University, Guangzhou 510275, China,Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China,State Key Laboratory for Biocontrol, School of Life Sciences, Zhongshan University, Guangzhou 510275, China
Abstract:Sequence of rDNA intergenic spacer region (ISR) from a waterbloom cyanobacterial species Oscilla-toria sp. was determined and analyzed. The results of sequence comparison showed that the spacer had a high level sequence divergence, suggesting the sequence may be a target sequence for developing cyanobacteria genus- and species-specific oligonucleotide probes. In addition, a 20bp sequence of rDNA ISR was found highly conserved in all species of cyanobacteria, which was not found in other eubacteria. This conserved sequence within a variable region indicates that it might be a functional oligonucleotide in the processing of the rRNA precursor.
Keywords:Oscillatoria sp    rDNA intergenic spacer region  sequence analysis  
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