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  • Title: Improvement of a multiplex PCR system for DYS441, DYS442, DYS443, DYS444 and DYS445, and a population study in 340 Japanese males.
    Author: Ogata Y, Yamaba T, Sawazaki K, Iida R, Tsubota E, Takatsuka H, Matsuki T, Yasuda T, Kishi K.
    Journal: Leg Med (Tokyo); 2005 May; 7(3):183-9. PubMed ID: 15847828.
    Abstract:
    A multiplex PCR system for five Y-STRs (DYS441, DYS442, DYS443, DYS444 and DYS445) has been improved to increase the probability of obtaining a DNA typing result from aged samples. Newly designed PCR primers for amplification of the DYS441 and DYS442 loci and optimization of PCR conditions enabled successful typing from blood and semen stains that had been stored for more than seven years at room temperature. Analysis of 340 Japanese males revealed 7, 5, 6, 5 and 4 alleles at the DYS441, DYS442, DYS443, DYS444 and DYS445 loci, respectively, yielding 122 haplotypes with a cumulative haplotype diversity of 0.97.
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