Abstract
The use of miniSTR markers is a valuable tool in the forensic laboratory since it allows high-quality genetic profiles to be obtained on low copy number (LCN) or degraded DNA taken from different samples, such as cadaveric material, paraffin-embedded tissue, chewing gum, traces of saliva, pieces of cloth, cigarette butts, bone samples, etc. In addition, it is useful to have additional STR loci to solve paternity cases with one or more inconsistencies or to increase the amount of genetic information for incomplete family studies, where the genetic profile of the alleged father has to be reconstructed. Genetic frequencies and forensic parameters were calculated for 12 non-CODIS miniSTR loci (D20S480, D6S2439, D6S1056, D9S1118, D4S2639, D17S1290, D10S1248, D14S1434, D22S1045, D4S2364, D2S441 and D1S1677) from a total of 506 unrelated individuals from various provinces in the central region of Argentina (Cordoba, Buenos Aires, Salta, Entre Rios and Santa Fe). The application of these miniSTR markers allowed LR > 1000 values to be obtained in kinship cases with incomplete families whose results had not been significant when using commercial kits. In conclusion, a database with Argentine population frequencies from these 12 miniSTR markers may be very useful in adding supplementary information for the forensic genetic laboratory.
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