Abstract

Aware that long-term storage bloodstain generally reduces numbers of detectable loci, we performed DNA typing with bloodstains stored at room temperature for 22–30 years, then extracted DNA from the bloodstains using the AmpFlSTR Y-filer PCR Amplification Kit. We performed electrophoresis with an ABI 310 Genetic Analyzer and determined alleles using GeneMapper ID v3.2 software. Our results suggest that Y-filer finds certain loci more difficult to anneal than others.

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