Patent ID: 7807865

Claim:
A method for producing a stably transformed chimeric dicotyledonous plant having transgenic root tissue, the method comprising the steps of: obtaining a stem or hypocotyl explant from a selected dicotyledonous plant species, wherein the hypocotyl explant has a cut end below the cotyledon; transforming the stem or hypocotyl explant with Agrobacterium rhizogenes containing an exogenous nucleic acid sequence capable of being transferred to the explant, wherein the cut end of the hypocotyl explant is contacted with the Agrobacterium rhizogenes; culturing the transformed explant in a root initiating media to produce transformed roots; and transferring the transformed roots to soil or a hydroponic environment to produce a chimeric dicotyledonous plant having transformed roots and wild type shoots, stems and leaves, wherein the dicotyledonous plant is soybean.