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ABO and Amelogenin Determination by PCR, from Experimental Bloodstains and from Museum Specimens, Using a
Tadeusz Dobosz1, Małgorzata Bonar2, Anna Jonkisz1
1Department of Forensic Medicine, Division of Molecular Techniques, Wroclaw Medical University, M. Sklodowskiej-Curie 52, 50-369 Wroclaw, Poland.
Genes
|June 26, 2026
Summary
This study introduces a non-destructive DNA extraction method for museum samples, enabling genetic analysis of historical tissues and fluids for ABO blood group and sex determination. This technique preserves valuable specimens for future research.
Area of Science:
- Paleogenomics
- Molecular Anthropology
- Conservation Science
Background:
- Museum collections offer unique insights into historical diseases and population genetics.
- Traditional DNA extraction methods often degrade valuable ancient samples.
- Non-destructive techniques are emerging for genetic analysis of preserved specimens.
Purpose of the Study:
- To present a non-destructive DNA extraction method for preserved museum samples.
- To enable genetic analyses like ABO genotyping and sex determination (Amelogenin) from diverse sample types.
- To validate the efficacy of this method for degraded DNA.
Main Methods:
- Developed a non-destructive, PCR-based DNA extraction approach.
- Analyzed human tissue, filter materials, and conservation fluids.
- Determined ABO genotype and sex using specific PCR primers.
Main Results:
- Achieved consistent PCR profiles (ABO and Amelogenin) across tissue, filter, and fluid samples.
- Demonstrated that DNA diffuses slowly into preservative solutions over decades.
- Showcased the ability to perform PCR directly without prior DNA preparation.
Conclusions:
- Museum samples are a reliable source for DNA extraction and PCR-based analysis.
- The method effectively utilizes degraded DNA, suitable for ABO genotyping and sex determination.
- This non-destructive approach preserves sample integrity for future research.
