کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6553775 160893 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Quantifiler® Trio Kit and forensic samples management: A matter of degradation
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی ژنتیک
پیش نمایش صفحه اول مقاله
Quantifiler® Trio Kit and forensic samples management: A matter of degradation
چکیده انگلیسی
DNA collected from crime scenes may have experienced different levels of degradation. This is mainly due to sample exposure to different environmental factors. The impact of DNA degradation on short tandem repeat (STR) profiling can lead to partial or null information and in some cases, the identification of the trace may fail. The availability of a system enabling the assessment not only of the quantity of the DNA but also of its quality in terms of degradation would result in shorter time for sample processing, more reliable identifications and cost reduction by predicting the quality of the DNA profiles prior to STR analysis. We report here a study on 181 selected degraded DNA samples extracted from real crime scene evidence. The selected samples were processed by combining the use of a new commercial quantification kit (Quantifiler® Trio) with a new 24 marker multiplex PCR amplification kit (Globalfiler® Kit). Applying different statistical analyses we investigated the reliability of the Degradation Index provided by the Quantifiler® Trio in determining the level of DNA degradation in a forensic sample. This useful information can be used to predict the quality of the profile obtained after STR amplification. The combination of such a quantification kit with different PCR protocols allowed us to define practical guidelines for processing degraded forensic DNA samples with a simplified and comprehensive approach.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Forensic Science International: Genetics - Volume 16, May 2015, Pages 77-85
نویسندگان
, , , , , ,