The restriction endonuclease reaction mixture was
mixed gently and spun down for a few seconds. The reaction mixture
was then incubated at 37 °C for 3 h. The restriction patterns or ARDRA
profileswere examined using 3.0% (w/v) agarose gels in 0.5X TBE buffer
at 100 V for 40 min [horizontal gel apparatus (GelMate GEP102, Toyobo
Co., Ltd., Osaka, Japan)] with a DNA ladder (GeneRuler™ 100 bp DNA
ladder). The gel was visualized using an Image Master® VDS.