Fig. 1. (A) Diagram of experimental plot design. At the center point were five transgenic creeping bentgrass plants. At each of the 90 surrounding points were one plant of nontransgenic creeping bentgrass and one plant of each of the four related species. The distance between each sample point was 3 m. (B) Photograph of one of the sample points. The plants are (1) creeping bentgrass, (2) A. capillaris, (3) A. gigantea, (4) A. canina, and (5) A. castellana.