0.3 mL of Taq DNA polymerase
(5 U/mL) and 1.0 mL of template DNA (5 ng/mL). PCR amplification was performed using a Gene-Amp PCR system 9700 DNA
Thermal Cycler (Applied Biosystems, Foster City, CA, USA) and the following conditions: 4 min of initial denaturation at 94 C;
30 cycles of 30 s denaturation at 94 C, 30 s of annealing at 52 C, and 90 s of elongation at 72 C; and a final extension for
10 min at 72 C.