1 µl of 1mM dNTPs, 1U of Taq polymerase (5u/µl) (Fermentas, Canada), 4 µl of 25 mM of MgCl2, 2 µl of 10x buffer (Fermentas, Canada), and 0.5 µl of 5 µM of forward and reverse of each primer (Table 1). The amplification was performed under the following conditions: preliminary denaturation at 95 °C for 3 min; then 30 cycles of denaturing at 94°C for 30 sec, annealing at 58°C for 30 sec, and extension at 72°C for 1 min; and final extension at 72°C for 5 min. The amplification product was resolved on a 0.7% (w/v) agarose gel electrophoresis at 100 V for 40 min.