Additional file 3 of Aspartic protease inhibitor enhances resistance to potato virus Y and A in transgenic potato plants

Additional file 3: Fig. S3. Southern blot analysis of the independent transgenic potato plants overexpressing StAPI5 gene (right) in this image and one other studied gene (left) to confirm the transgene integration into the potato genome and to estimate the transgene copy number. P: the pRI-AN201 binary vector containing the StAPI5 gene (positive control); lanes 1 and 2: independent transgenic potato plants; C: non-transformed potato (negative control)