Studies on the riboxomal RNA genes of rhizobium meliloti and bradyrhizobium japonicum

Rhizobium meliloti와 bradyrhizobium japonicum의 ribosomal RNA 유전자에 관한 연구

  • 강홍규 (경북대학교 농과대학 농학과) ;
  • 김달웅 (경북대학교 농과대학 농학과) ;
  • 하지홍 (경북대학교 자연과학대학 유전공학과)
  • Published : 1988.12.01


The genes for ribosomal RNA in Rhizobium meliloti and Bradyrhizobium japonicum were analyzed by southern hybridization of BamHI, EcoRI, HindIII digested chromosomal DNA with purified 5' $^{32}P$-labeled 16S and 23S rRNA. The big differences in the hybridization pattern of both rhizobia were found. The comparative results were discussed in relation to the copy number and conservativity of restriction sites in the rRNA genes of both rhizobia.


Rhizoblum meliloti;Bradyrhizobium faponicum;Ribosomal RNA gene;Southern hy-bridizations