The present invention provides a method of making a genetically transformed
plant which has an altered content of at least one product of a secondary
metabolic pathway. The method consists of introducing into a plant cell
capable of being transformed and regenerated to a whole plant a DNA
expression cassette. The expression cassette includes DNA sequences
required for transformation and selection in plant cells. It also includes
a DNA sequence that, under the control of a promoter active in plant
cells, encodes a protein capable of modifying the utilization of a
substrate in the secondary metabolic pathway. The substrate is not a
primary metabolite of the group selected from glucose, amino acids, common
fatty acids and nucleotides. A plant or plant tissues including seeds can
then be recovered having an altered content of at least one product of the
secondary metabolic pathway. The invention also provides for feed products
derived from the plants and seeds obtained according to the method.
