Secuencias de ácidos nucleicos y péptidos/proteínas que pertenecen filogeneticamente al clado ft de la familia genica de pebp que proporcionan propiedades represoras de la floración en plantas de tabaco y en plantas transgénicas transformadas con las mismas

The present invention is directed to nucleic acid sequences coding for a protein which, (1) under a respective promoter, is able to suppress or repress or delay flowering of a plant, and (2) includes the motive "NAPDIIDS" in place of the "YAPGW" motive of the flowering promoting proteins AtFT and BvFT2, with the exception of the nucleic acid of the gene StSP5G or a part thereof. The invention is further directed to peptides or proteins, obtainable by expression of the nucleic acid of any of the preceding claims, vectors, comprising a nucleic acid sequence as defined above, and to plants, parts of plants, or seed of plants, the plants comprising such a nucleic acid sequence.