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Restriction fragment map of sugar beet (Beta vulgaris L.) chloroplast DNA
Y Kishima1, T Mikami, T Harada
1Plant Breeding Institute, Faculty of Agriculture, Hokkaido University, 060, Sapporo, Japan.
Abstract:
A restriction endonuclease fragment map of sugar beet chloroplast DNA (ctDNA) has been constructed with the enzymes SmaI, PstI and PvuII. The ctDNA was found to be contained in a circular molecule of 148.5 kbp. In common with many other higher plant ctDNAs, sugar beet ctDNA consists of two inverted repeat sequences of about 20.5 kbp separated by two single-copy regions of different sizes (about 23.2 and 84.3 kbp). Southern hybridization analyses indicated that the genes for rRNAs (23S+16S) and the large subunit of ribulose 1,5-bisphosphate carboxylase were located in the inverted repeats and the large single-copy regions, respectively.
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