The present study refers to the previously reported identification of a family of interspersed repeated sequence in Vicia sativa. It deals with the organisation, <nucleotide sequence> and potential <transcriptional activity> of these sequences. A high degree of homology was found between repeats belonging to this family within both Vicia sativa and two other species, which indicates a conservative nature of these repeated sequences. Dot blot hybridization and computer analysis suggest that it is possible to express DNA fragments localized within the repeated sequences of the described family. The family of sequences, the object of these studies, has not been identified in the genome of Vicia sativa so far.