A plant, multicellular fragment of said plant or seed of said plant
transformed with a nucleotide sequence of SEQ ID NO 1 or an allelic
variant or a fragment thereof or a genetic equivalent thereof according
to the degeneracy of the genetic code coding for a peptide having a
Brassica myo-inositol 1-phosphate synthase activity, said plant,
multicellular fragment or seed having reduced myo-inositol 1-phosphate
synthase activity when compared with an equivalent untransformed plant,
multicellular fragment or seed, such that there is reduced phytate
present in the plant, multicellular fragment or seed. The invention also
provides a method for reducing phytate in Brassica, which method
comprises growing a Brassica plant comprising one of a myo-inositol
1-phosphate synthase antisense sequence and a myo-inositol 1-phosphate
synthase cosuppression sequence thereby yielding a reduced amount of
myo-inositol 1-phosphate synthase and consequently reduced phytate in
said Brassica.