“…Many techniques derived from PCR were developed to analyze DNA sequences, including random ampliWed polymorphic DNA (RAPD), PCR single stranded conformational polymorphism (PCR-SSCP), and PCR restriction fragment length polymorphism (PCR-RFLP) (Jones, 1991;Williams, Kubelik, Livak, Rafalski, & Tingey, 1990). Among them, PCR-RFLP technique was the most popular to apply in biology, medicine and food science (Kurihara, Tawata, Ikegishi, Aida, & Onaya, 1999;Russell et al, 2000;Sato et al, 1998). In our previous papers, the PCR-RFLP technique has been utilized to identify some species of raw Wsh and processed foods (Hsieh, Chai, & Hwang, 2005;Hsieh, Shiu, Cheng, Chen, & Hwang, 2002;Hwang, Jen, Hsieh, & Shiau, 2004;Lin, Shiau, & Hwang, 2005).…”