Reduction of Powerplex Y23 Reaction Volume for Genotyping Buccal Cell Samples on FTA TM Cards

• Aliza Raziel ^[1] ; Aviva Dell'Ariccia-Carmon ^[1] ; Ashira Zamir ^[1]
  1. [1] Division of Identification and Forensic Science (DIFS) Israel Police National H.Q. DNA Database Laboratory Jerusalem Israel
• Localización: Journal of forensic sciences, ISSN-e 1556-4029, ISSN 0022-1198, Vol. 60, Nº. 1, 2015, págs. 152-156
• Idioma: inglés
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• Resumen

  • PowerPlex Y23 is a novel kit for Y-STR typing that includes new highly discriminating loci. The Israel DNA Database laboratory has recently adopted it for routine Y-STR analysis. This study examined PCR amplification from 1.2-mm FTA punch in reduced volumes of 5 and 10 lL. Direct amplification and washing of the FTA punches were examined in different PCR cycle numbers. One short robotically performed wash was found to improve the quality and the percent of profiles obtained. The optimal PCR cycle number was determined for 5 and 10 lL reaction volumes. The percent of obtained profiles, color balance, and reproducibility were examined. High-quality profiles were achieved in 90% and 88% of the samples amplified in 5 and 10 l L, respectively, in the first attempt. Volume reduction to 5 lL has a vast economic impact especially for DNA database laboratories.