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Related Experiment Video

Updated: Apr 5, 2026

Genotyping Single Nucleotide Polymorphisms in the Mitochondrial Genome by Pyrosequencing
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Forensic Mitochondrial DNA Analysis: Current Practice and Future Potential.

T Melton1, C Holland1, M Holland2

  • 1Mitotyping Technologies, LLC, State College, PA, USA.

Forensic Science Review
|August 6, 2015
PubMed
Summary

Forensic mitochondrial DNA (mtDNA) sequencing methods have remained largely unchanged for two decades. Reassessing alternative and new technologies like next-generation sequencing is crucial for advancing forensic mtDNA analysis.

Keywords:
DGGEDNA damageDeep sequencingdHPLCmass spectrometrymtDNA mixturesscreening

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Area of Science:

  • Forensic Science
  • Genetics
  • Molecular Biology

Background:

  • Forensic mitochondrial DNA (mtDNA) analysis has seen minimal evolution in core methodologies over the past 20 years.
  • Established Sanger-based sequencing and data interpretation remain the standard in public and private US laboratories.
  • Despite technological advancements, fundamental approaches to mtDNA analysis have persisted.

Purpose of the Study:

  • To provide an overview of current forensic mtDNA analysis practices in the United States.
  • To highlight the need for reassessing alternative and emerging technologies in forensic mtDNA analysis.
  • To frame future directions and improvements in the field of forensic mtDNA profiling.

Main Methods:

  • Amplification of mtDNA control region segments from diverse biological samples.
  • Sanger-based sequencing of amplified mtDNA products.
  • Data interpretation using various available software packages.

Main Results:

  • Current forensic mtDNA sequencing practices are largely consistent across laboratories.
  • Established methods, while robust, may not fully address challenges like heteroplasmy and mixed profiles.
  • Alternative methods and new technologies warrant re-evaluation for potential benefits.

Conclusions:

  • The field of forensic mtDNA analysis requires periodic reassessment of alternative methods (e.g., linear array assays, dHPLC) and newer technologies (e.g., next-generation sequencing).
  • Adapting to new technologies can help streamline testing, improve interpretation of complex samples, and enhance overall forensic casework.
  • Continuous evaluation of methodologies is essential for the advancement of forensic mtDNA analysis.