The present invention provides a method for the targeted insertion of a
nucleotide of interest into a specific chromosomal site within a plant
cell. The method comprises the steps of: (a) providing a plant cell, the
plant cell optionally but preferably having a heterologous target site on
a chromosome thereof, wherein said target site is flanked by at least one
recombination site; and then (b) transforming said plant cell with a
transformation vector (e.g., with an Agrobacterium transformation vector)
carrying a nucleotide sequence of interest, wherein said nucleotide
sequence of interest is flanked by at least one recombination site that
corresponds to the recombination sites of said target site, so that said
nucleotide of interest is inserted into said chromosome at said target
site (when a target site is employed).