A method is disclosed for producing a transgenic cotton plant comprising
the steps of (a) obtaining cottonfibrous root explants, (b) culturing the
fibrous root explants to induce callus formation, (c) exposing root
callus to a culture of Agrobacterium tumefaciens that harbors a vector
comprising an exogenous gene and a selectable marker, the Agrobacterium
being capable of effecting the stable transfer of the exogenous gene and
selection agent resistance gene to the genome of the cells of the
explant, (d) culturing the callus in the presence of the selection agent
to which the selection agent resistance gene confers resistance so as to
select for transformed cells, (e) inducing somatic embryo formation in
the selected callus culture, and (f) regenerating the induced somatic
embryos into whole transgenic cotton plants.