科研之友
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摘要
Various arbitrary primers as well as pUC18/19 'reverse' sequencing primers were used for random amplified polymorphic DNA assays. Use of a modified reverse primer led to amplification of one major approx. 1100-bp band from the chromosomal DNA of all actinomycetes tested; however, the band was not found when DNAs from other bacteria were used in comparable experiments. Hybridization experiments showed that these bands all contained similar genomic regions. Subsequent sequencing of four of these fragments showed they each contained the sequence of the 3' end of the 23S rRNA gene, the intergenic region and the start of the 5S rRNA gene.
- 出版日期1995-5-1
