NCJ Number
234194
Journal
Forensic Science International: Genetics Volume: 5 Issue: 2 Dated: March 2011 Pages: 117-121
Date Published
March 2011
Length
5 pages
Annotation
This study explored the method to analyze a DNA mixture.
Abstract
In forensic work, the interpretation of DNA profiles becomes complicated when samples contain more than one contributor because the simultaneous amplification of individual identification markers results in mixed profiles. To overcome this problem, the authors present haplotype-specific extraction (HSE) as a more straightforward method to analyze a DNA mixture. HSE has been developed to clarify ambiguous HLA alleles by separating diploid samples into their haploid components to facilitate HLA typing. The authors have started to establish new protocols and strategies to adapt HSE for the separation of male DNA mixtures in forensic analysis. First results have shown an improved enrichment of male DNA from a single contributor. The authors have also evaluated a new, optimized buffer composition by testing different concentrations of its components. Improved separation of a male DNA mixture is detected using AmpFl STR Yfiler short tandem repeat analysis. (Published Abstract)