Figure 4. Relative transcript levels of PnAlaAT genes in different organs of P. simonii × P. nigra.

Quantitative RT-PCR was performed using total RNA extracted from leaves, stems and roots of 30 cm tall plants. Results are the mean ± SE of three replicates. (P < 0.05). L1: 1st–3rd leaves from the top of the plant; L2: 4th–6th leaves from the top of the plant; L3: 1st–3rd leaves from the bottom of the plant.