Mayra Eduardoff

Dr. Mayra Eduardoff

Forensic Science, Sam Houston State University, Huntsville, Alabama, USA
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Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 July 2018 in Forensic Science International: Genetics
Verified
Journal Article
Closed access
CSChristina Strobl
Christina Strobl
Mayra EduardoffMayra Eduardoff
Mayra Eduardoff
MBMagdalena M. Bus
Magdalena M. Bus
MAMarie Allen
Marie Allen
Walther ParsonWalther Parson
Walther Parson

22 January 2021 in Genes
Verified
Journal Article
Open access
PDF file
CXCatarina Xavier
Catarina Xavier
Mayra EduardoffMayra Eduardoff
Mayra Eduardoff
BBBarbara Bertoglio
Barbara Bertoglio
CAChristina Amory
Christina Amory
CBCordula Berger
Cordula Berger
Walther ParsonWalther Parson
Walther Parson
The efficient extraction of DNA from challenging samples, such as bones, is critical for the success of downstream genotyping analysis in molecular genetic disciplines. Even though the ancient DNA community has developed several protocols targeting small DNA fragments that are typically present in decomposed or old specimens, only recently forensic geneticists have started to adopt those protocols. Here, we compare an ancient DNA extraction protocol (Dabney) with a bone extraction method (Loreille) typically used in forensics. Real-time quantitative PCR and forensically representative typing methods including fragment size analysis and sequencing were used to assess protocol performance. We used four bone samples of different age in replicates to study the effects of both extraction methods. Our results confirm Loreille’s overall increased gain of DNA when enough tissue is available and Dabney’s improved efficiency for retrieving shorter DNA fragments that is beneficial when highly degraded DNA is present. The results suggest that the choice of extraction method needs to be based on available sample, degradation state, and targeted genotyping method. We modified the Dabney protocol by pooling parallel lysates prior to purification to study gain and performance in single tube typing assays and found that up to six parallel lysates lead to an almost linear gain of extracted DNA. These data are promising for further forensic investigations as the adapted Dabney protocol combines increased sensitivity for degraded DNA with necessary total DNA amount for forensic applications.