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Genotyping Single Nucleotide Polymorphisms in the Mitochondrial Genome by Pyrosequencing
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Mitochondrial genome interrogation for forensic casework and research studies.

Rhonda K Roby1,2, Marc Sprouse1, Nicole Phillips1

  • 1Department of Molecular & Medical Genetics, UNT Health Science Center, Fort Worth, Texas.

Current Protocols in Human Genetics
|April 26, 2014
PubMed
Summary

This unit details mitochondrial DNA (mtDNA) analysis methods for forensic casework and biomedical research. Protocols cover mtDNA quantification, whole genome amplification, and sequencing for degraded samples and high-throughput applications.

Keywords:
PCRamplificationforensicmtDNAmtGenomequantificationsequencing

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Area of Science:

  • Forensic Science
  • Molecular Biology
  • Genetics

Background:

  • Mitochondrial DNA (mtDNA) analysis is crucial for forensic identification and research.
  • Forensic samples often contain degraded or inhibited DNA, posing analytical challenges.

Purpose of the Study:

  • To describe robust methods for mitochondrial DNA (mtDNA) analysis in forensic and research contexts.
  • To provide protocols applicable to degraded DNA samples commonly found in forensic casework.

Main Methods:

  • Quantification of mtDNA before and after amplification.
  • Amplification of the entire control region and whole mitochondrial genome (mtGenome).
  • Post-polymerase chain reaction (PCR) cleanup and sequencing.

Main Results:

  • Developed high-throughput protocols for forensic DNA testing, including reference samples and population studies.
  • Validated procedures for interrogating the entire mitochondrial genome (mtGenome).
  • Established protocols suitable for degraded and inhibited DNA samples.

Conclusions:

  • The described mtDNA analysis methods are effective for forensic casework, even with compromised DNA.
  • These protocols support high-throughput databasing and population studies.
  • The methods are also applicable to biomedical research, including age-related diseases and health disparities.