Abstract: Abstract： Objective To investigate the genetic polymorphism of SNP located in the 5′ region of the vascular endothelial growth factor （VEGF） gene in Han population in Guangdong and provide basic data for forensic application and population genetics research. Methods The genetic polymorphisms of 4 SNP loci （rs699947, rs1570360, rs833061, rs2010963） within 5′ region of VEGF gene of 184 unrelated individuals in Han population in Guangdong were analyzed by DNA micro sequencing technology SNaPshot. The statistical analysis was carried out by PowerMarker v3.25 software. Results The genotype distributions of the 4 SNP loci within 5′ region of VEGF gene of 184 unrelated individuals in Han population in Guangdong were in accordance with Hardy-Weinberg equilibrium （P>0.05） and 3 kinds of genotypes were detected from each loci. There was high linkage disequilibrium between the rs833061 and rs699947 SNP loci. Six haplotypes were observed, while the frequency of C-G-T-C, C-G-T-G, A-A-C-G and A-G-C-G were more than 10%, which were the main haplotypes. The discrimination probabilities （DP） of rs699947, rs833061, and rs2010963 loci were between 0.583 and 0.634, with the power of exclusion （PE） between 0.133 and 0.144. The DP and PE of haplotypes of 4 SNP were 0.868 and 0.438, respectively. Conclusion There are great polymorphisms in the 5′ region of VEGF gene in Han population in Guangdong, which could be used as genetic indexes for individual identification and paternity testing, as well as association analysis of the related diseases.

Key words: forensic genetics, polymorphism, single nucleotide, vascular endothelial growth factor, Han nationality