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Forensic Science International: Genetics Supplement Series

A B S T R A C T In this study, the aim is to determine allele frequencies of D1S1677, D2S441, D4S2364 miniSTR loci and to provide these 3 loci for using routinely in Turkish Criminal Laboratories. Allele frequencies and forensic parameters for the three miniSTR loci were investigated in a sample of 200 unrelated healthy Turkish individuals. We use Powerstats Excel workbook, in order to use a simple, quick and reliable method to analyze the race-based population statistics of potentially useful loci. This population data suggests that these three miniSTR loci will serve as useful complements to the CODIS loci to aid in the forensic analysis of degraded DNA, as well as missing persons work and parentage testing with limited next-of-kin reference samples, with a validated method in Turkish Criminal Laboratories. In Turkish population, powers of discrimination for these three loci are more than 0.837. Information content of polymorphism results are 0.75, 0.83 and 0.63 respectively.