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Nucleic Acids Research, 1984, Vol. 12, No. 16 6415-6426
© 1984
MOLECULAR BIOLOGY |
Sequence analysis of Vicia faba repeated DNA, the FokI repeat element
Department of Botany, Faculty of Science, Hokkaido University Sapporo 060, Japan
Received June 7, 1984. Accepted July 5, 1984.
A of highly repeated DNA sequences present in the genome of Vicia faba was detected by digestion its nuclear DNA with FokI endonuclease and fractionating the digests on polyacrylamide gels. Four fragments of 59, 108, 177 and 246 bp of the FokI repeated sequences were collected from the gels and their primary structures were determined by the method of Maxam and Gilbert. These repeated DNA sequences were shown to be a multiple tandem array of a 59 bp sequence element. And its nucleotide sequence was almost completely conserved among all the sequence members of each the size class and also among these classes. This sequence element consists of a duplet of an about 20 bp short sequence and another unrelated 20 bp sequence. Each repeat unit of the duplet has an imcomplete dyad syrmuetrical structure.
1Present address: Department of Biology, Faculty of Education, Kanazawa University, Kanazawa 920, Japan
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