Fig. 1

(a) PCR analysis with perfect primers Lane M: 100-bp DNA ladder, 1:HD2189 (RhtB1b), 2: Sonalika (RhtD1b), 3-16: oligoculm derivatives (RhtB1a), 17: Sonalika (RhtB1a), 18: C-306 (RhtB1a), 19: C-306 (RhtD1a), Lane M: 100-bp DNA ladder.  (b) PCR analysis with perfect primers Lane M: 100-bp DNA ladder, 1: HD2189 (RhtB1b), 2: Sonalika (RhtD1b), 3-16: oligoculm derivatives (RhtD1a), 17: Sonalika (RhtB1a), 18: C-306 (RhtB1a), 19: C-306 (RhtD1a), Lane M: 100-bp DNA ladder