Mapping the Chloroplast DNA of Vicia faba.

A complete clone bank representing the chloroplast DNA from Vicia faba has been constructed. A total of 15 fragments (10 Pst1, 1 Pst1-EcoR1 and 4 Sal1 fragments) were inserted into the vector pBR322 and transformed into the E. coli strain HB101. The cloned fragments were used as the main tools in constructing the physical map of Vicia faba for the restriction endonucleases Pst1, Kpn1 and Xho1. The identity of the cloned fragments was demonstrated by restriction analysis and blot hybridization. The information generated was used to construct the map. The 16S and 23S rRNA genes and the gene for the large subunit of ribulose-1,5-bisphosphate carboxylase have been positioned on the map using heterologous probes. The orientation of the gene for the large subunit of RuBP carboxylase has also been determined.