The identification of a victim using the DGGE method for trace deposits collected on adhesive film.

Abstract

The denaturant gradient gel electrophoresis (DGGE) method was used in order to simultaneously estimate the genotypes of different factors in a gel plate consisting of one sheet. A genotype analysis of the blood groups (MN, Duffy, Kidd type) and serotype (Gc system) was carried out. DNA samples were extracted from trace deposits which were transferred on adhesive film from a blood trace obtained from a car tire after a fatal car accident. The reference DNA was prepared from the victim's blood. The PCR amplification fragments were amplified from the gene which controlled each blood group. The primers were designed in order to analyze the genotypes with one to three base substitutions in the amplification product. The denaturant concentration limit of the gel for the DGGE method to detect each genotype of the blood groups (MN, Duffy, Kidd type and Gc system) and other conditions of electrophoresis were performed according to previously methods. The each genotype of the blood groups and the Gc system were all simultaneously distinguished in one plate.