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Evaluating the performance of five up-to-date DNA/RNA co-extraction methods for forensic application.

Authors :
Wang S
Shanthan G
Bouzga MM
Thi Dinh HM
Haas C
Fonneløp AE
Source :
Forensic science international [Forensic Sci Int] 2021 Nov; Vol. 328, pp. 110996. Date of Electronic Publication: 2021 Sep 09.
Publication Year :
2021

Abstract

The importance of RNA evidence is growing with new developments in RNA profiling methods and purposes. As forensic samples often can be of small quantity, extraction methods with high yields of both DNA and RNA are desirable. In order to identify the optimal DNA/RNA co-extraction workflow for forensic samples, we evaluated the performance of three frequently-used methods, two new approaches for DNA/RNA co-extraction and a manual phenol/chloroform RNA-only extraction method on blood and saliva samples. Based on a comprehensive analysis of the RNA and DNA quantities, as well as the STR genotyping and mRNA profiling results, we conclude that the two frequently-used co-extraction methods, combining commercially available DNA and RNA extraction kits, achieved the best performance. However, not any combination of commercially available DNA and RNA extraction kits works well and extensive optimization is necessary, as seen in the poor results of the two new approaches.<br />Competing Interests: Conflicts of interest The authors declare that they have no conflict of interest.<br /> (Copyright © 2021 The Author(s). Published by Elsevier B.V. All rights reserved.)

Details

Language :
English
ISSN :
1872-6283
Volume :
328
Database :
MEDLINE
Journal :
Forensic science international
Publication Type :
Academic Journal
Accession number :
34592582
Full Text :
https://doi.org/10.1016/j.forsciint.2021.110996