The present invention is concerned with means and methods for allowing tissue specific and, in particular, seed specific expression of genes. The present invention, accordingly, relates to a polynucleotide comprising an expression control sequence which allows seed specific expression of a nucleic acid of interest being operatively linked thereto. Moreover, the present invention contemplates vectors, host cells, non-human transgenic organisms comprising the aforementioned polynucleotide as well as methods and uses of such a polynucleotide.