Abstract:
:When deaths occur in water, soft tissue decomposes after a temperature-dependent period, making DNA identification dependent on bone. This study examined the effects of water on bone DNA purity and quantity, and determined the best of three extraction methods for isolating DNA. The organic phenol-chloroform method consistently extracted DNA approximating the accepted 260/280 purity value (~1.8); ChargeSwitch® gDNA Plant Kit and DNeasy Blood and Tissue Kit produced fair and unacceptable values, respectively. The purity value for humerus and rib samples was consistent across accumulated degree days (ADD). Significant differences in quantification among extraction methods and between bone types were identified. Ribs and ChargeSwitch® gDNA Plant Kit samples produced the lowest mean Ct values of the bone types and the extraction methods, respectively. Therefore, this study proposes that magnetic bead technology extraction methods and ribs be considered when processing bones that have been submerged in water for any length of time.
journal_name
J Forensic Scijournal_title
Journal of forensic sciencesauthors
Cartozzo C,Singh B,Boone E,Simmons Tdoi
10.1111/1556-4029.13792subject
Has Abstractpub_date
2018-11-01 00:00:00pages
1830-1835issue
6eissn
0022-1198issn
1556-4029journal_volume
63pub_type
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journal_title:Journal of forensic sciences
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journal_title:Journal of forensic sciences
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journal_title:Journal of forensic sciences
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journal_title:Journal of forensic sciences
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