J Integr Plant Biol. ›› 1989, Vol. 31 ›› Issue (3): -.

• Research Articles •    

Physical Mapping of Recombinant Plasmids Containing Broad Bean Chloroplast Ribosomal RNA Genes

Li Jla, Tang Su, Zhan Xiao-ming, Chen Qin-chuang, Weng Xing-hua and Wang Xun-ming   

Abstract: Two BamHl fragments containing broad bean chloroplast rRNA genes were cloned using the bacterial plasmid pBR322 as a vector and Escherichia coli HB101 as host bacterial. Physical maps of the two cloned ct DNA BamHI fragments containing rRNA genes were constructed by cleavage with several restriction endonucleases and Southern blot hybridization with E. coli 16S-23S rRNAs. Recombinant plasmids pVFBI6 and pVFB32 contain a 16S rRNA sequence on the 4.70 kb BamHl fragment, a 23S rRNA sequence and 4.5S/5S rRNA sequences on the 5.65 kb BamHl fragment, respectively.

Key words: Recombinant DNA, Gene cloning, rRNA genes, Broad bean chloroplast

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