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  • Title: [Construction and application of fluorescence labeled multiplex typing system for 3 new miniSTR loci].
    Author: Du B, Jiang JP, Du H, Zhang L.
    Journal: Fa Yi Xue Za Zhi; 2010 Aug; 26(4):282-4. PubMed ID: 20967957.
    Abstract:
    OBJECTIVE: To establish a miniSTR multiplex set including three STR loci unlinked from the CODIS loci: D1S1676, D6S1274 and D17S1299, to generate amplified fragment less than 115 bp in size and to study the genotype of degraded DNA samples. METHODS: After amplification with different fluorescence labeled primers, the amplified products from 100 unrelated individual and 2 highly degraded specimens were analyzed by 310 Genetic Analyzer. RESULTS: Three miniSTR loci were determined by fluorescence-labeled multiplex-PCR technique. Each locus was successfully genotyped in all 100 samples. In D1S1676, D6S1274 and D17S1299 loci, 9, 9, 7 alleles and 27, 23, 18 genotypes were observed respectively. The distribution of genotype for three miniSTR loci in Chengdu Han population was in accordance with Hardy-Weinberg equilibrium. The combined exclusion probability and the combined discrimination power of the three STR loci in Chengdu Han population were 0.9991 and 0.9160 respectively. CONCLUSION: This miniSTR multiplex set could be used in individual identification and paternity test. It also provides a new method in the analysis of degraded DNA sample.
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