副溶血性弧菌菌株中16S - 23S rRNA基因间隔区的变异是由于其tRNAGlu附近的插入或缺失所致。
Variation in the 16S-23S rRNA intergenic spacer regions in Vibrio parahaemolyticus strains are due to indels nearby their tRNAGlu.
作者信息
González-Escalona Narjol, Romero Jaime, Guzmán Carlos A, Espejo Romilio T
机构信息
Laboratorio de Biotecnología, Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, Santiago, Chile.
出版信息
FEMS Microbiol Lett. 2006 Mar;256(1):38-43. doi: 10.1111/j.1574-6968.2005.00086.x.
Vibrio parahaemolyticus contains 11 rRNA operons each including one of six 16S-23S rRNA gene intergenic spacer classes differing in size and nucleotide sequence. Some of the spacer classes may differ between isolates. We observed that the differences in the spacers between isolates are generally in two spacer classes present in single copies in the genome, one class containing tRNA(Ala) and tRNA(Glu) and the other tRNA(Glu) exclusively. Moreover, these differences are due to indels located nearby their tRNA(Glu). Comparison of the nucleotide sequence between spacer classes suggests that intragenomic nonreciprocal recombination causes the size variations observed in the spacer regions of V. parahaemolyticus strains.
副溶血性弧菌含有11个rRNA操纵子，每个操纵子包含六个16S - 23S rRNA基因间隔区类别中的一个，这些类别在大小和核苷酸序列上有所不同。某些间隔区类别在不同分离株之间可能存在差异。我们观察到，分离株之间间隔区的差异通常存在于基因组中以单拷贝形式存在的两个间隔区类别中，一个类别包含tRNA（Ala）和tRNA（Glu），另一个类别仅包含tRNA（Glu）。此外，这些差异是由于位于其tRNA（Glu）附近的插入或缺失造成的。间隔区类别之间核苷酸序列的比较表明，基因组内的非互惠重组导致了副溶血性弧菌菌株间隔区区域中观察到的大小变化。
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