The invention provides several promoters isolated from Oryza sativa, which
promoters are capable of driving and/or regulating the expression of an
operably linked nucleic acid in a plant. The expression patterns of the
promoters according to the invention have been studied in Oryza sativa
and some of the promoters displayed specific activity in particular
cells, tissues or organs of the plant, while others displayed
constitutive expression throughout substantially the whole plant. Some
promoters showed weak expression, while others were strongly active.