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Related Concept Videos

Modern Molecular Taxonomy01:29

Modern Molecular Taxonomy

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Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
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Applications of Molecular Taxonomy01:20

Applications of Molecular Taxonomy

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Molecular taxonomy has revolutionized the understanding and classification of bacteria, providing precise insights into their diversity, evolutionary relationships, and ecological roles. By utilizing molecular techniques such as DNA sequencing and fingerprinting, researchers have made significant strides in various fields related to bacterial studies.Resolving Taxonomic AmbiguitiesMolecular taxonomy has been instrumental in distinguishing closely related bacterial species initially thought to...
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Related Experiment Video

Updated: Aug 22, 2025

Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing
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Post-Mortem Interval and Microbiome Analysis through 16S rRNA Analysis: A Systematic Review.

Pamela Tozzo1, Irene Amico1, Arianna Delicati1

  • 1Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, 35121 Padova, Italy.

Diagnostics (Basel, Switzerland)
|November 11, 2022
PubMed
Summary

Estimating the time of death (Post-Mortem Interval or PMI) is challenging. This review explores using cadaveric microbiome analysis via 16S rRNA sequencing to improve PMI estimation accuracy.

Keywords:
16S rRNAPMI (Post-Mortem Interval)forensic sciencemicrobiomesystematic review

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Area of Science:

  • Forensic Science
  • Microbiology
  • Genomics

Background:

  • Accurate Post-Mortem Interval (PMI) estimation remains a significant challenge in forensic science.
  • Traditional methods for PMI determination have limitations and lack consistent validation.
  • Advances in sequencing technologies enable comprehensive analysis of microbial communities.

Purpose of the Study:

  • To review recent advances in estimating PMI using cadaveric microbiota identification.
  • To correlate microbiome profiles from different body sites with PMI using 16S rRNA sequencing.
  • To assess the potential of microbiome analysis for improving PMI estimation.

Main Methods:

  • A systematic review adhering to PRISMA guidelines was conducted.
  • Database searching (PubMed) identified 800 relevant studies.
  • Twenty-five studies focusing on microbiome composition, body site, and sequencing methods for PMI estimation were selected and analyzed.

Main Results:

  • Studies on both human and animal models show promising results for microbiome-based PMI estimation.
  • Different body sites exhibit varying potential for PMI determination based on microbiome sequencing.
  • 16S rRNA sequencing provides valuable data for analyzing microbial communities in PMI studies.

Conclusions:

  • Cadaveric microbiome analysis holds significant potential for enhancing PMI estimation accuracy.
  • Standardization of body sampling sites and methods is crucial for reliable and comparable results across studies.
  • Further research is needed to fully exploit the microbiome's utility in forensic science.