Molecular organization of the transgenic locus in five independent transgenic lines of Gulfmont variety transformed with pWRG 4517. (A) G517-1, (B) G517-2, (C) G517-5, (D) G517-7, and (E) G517-3. H, hpt; B, bar; X, XbaI; S, SacI. (See Results for details.)