| abstract |
The invention concerns a nucleic acid sequence comprising: [Fa-Ub-Fc]n wherein a + b + c » 1 and n » 1; and U represents a sequence, 'U14', present in a plant genome as a non-translated sequence, said non-translated sequence comprising: i) at least one of the following phylogenetically conserved sequences, wherein N represents any one of the nucleotides A, C, G or T : I : TGATG(A/T) or II : CATTCGCAGTNNCCNCCTAAGA, or III : CCTTCCTNGGATGTCTGA or a sequence having at least 90 % homology with one of sequences I, II or III, and ii) at least one plant-specific region and, iii) a pair of inverted repeats, and F represents a non-translated flanking sequence which, in a plant genome, is immediately adjacent to the said 'U14' sequence. |