Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Methods of Classification and Identification01:28

Methods of Classification and Identification

Bacterial identification relies on a diverse array of techniques to classify and understand microorganisms, each tailored to uncover specific characteristics. Traditional morphological approaches, while still valuable, are limited for closely related or structurally simple organisms. Modern methods integrate biochemical, serological, genetic, and advanced molecular tools to achieve greater accuracy.Morphological and Biochemical TechniquesMorphological characteristics, such as cell shape and...
Modern Molecular Taxonomy01:29

Modern Molecular Taxonomy

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...
Evolutionary Relationships through Genome Comparisons02:54

Evolutionary Relationships through Genome Comparisons

Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
Applications of Molecular Taxonomy01:20

Applications of Molecular Taxonomy

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...
Rapid Identification of Pathogens01:25

Rapid Identification of Pathogens

MALDI-TOF MS has transformed clinical microbiology by offering a rapid and reliable method for pathogen identification. The traditional approach to microbial identification typically involves time-consuming culture techniques and biochemical tests, which can delay the initiation of appropriate antimicrobial therapy. MALDI-TOF MS avoids these delays by using characteristic ribosomal protein mass patterns of microbial cells, enabling accurate species-level identification within minutes.Principle...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Decomposition of partially submerged remains: a study on the reliability of insect colonisation for PMI/PMSI estimation.

Forensic science, medicine, and pathology·2024
Same author

Traumatic sheep myiasis: A review of the current understanding.

Veterinary parasitology·2022
Same author

Correction to: Bacterial association observations in Lucilia sericata and Lucilia cuprina organs through 16S rRNA gene sequencing.

Applied microbiology and biotechnology·2021
Same author

Bacterial association observations in Lucilia sericata and Lucilia cuprina organs through 16S rRNA gene sequencing.

Applied microbiology and biotechnology·2021
Same author

Culicoides species as potential vectors of African horse sickness virus in the southern regions of South Africa.

Medical and veterinary entomology·2019
Same author

Bloodmeal analysis in Culicoides midges collected near horses, donkeys and zebras in the Eastern Cape, South Africa.

Medical and veterinary entomology·2019

Related Experiment Video

Updated: Jul 7, 2026

DNA Extraction and Comparison Between Old and Fresh Necrophilic Fly Samples
06:33

DNA Extraction and Comparison Between Old and Fresh Necrophilic Fly Samples

Published on: May 3, 2024

A global study of forensically significant calliphorids: implications for identification.

M L Harvey1, S Gaudieri, M H Villet

  • 1Centre for Forensic Science, M420, University of Western Australia, Nedlands 6907, Australia. Michelle.Harvey@port.ac.uk

Forensic Science International
|February 26, 2008
PubMed
Summary

Molecular identification of forensically important flies (Calliphoridae) using the COI gene is crucial for estimating post-mortem intervals (PMI). This study reveals intraspecific variation in some species, highlighting the need for broader sampling in molecular forensic studies.

More Related Videos

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody
09:09

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody

Published on: September 27, 2024

Enhanced Genetic Analysis of Single Human Bioparticles Recovered by Simplified Micromanipulation from Forensic ‘Touch DNA’ Evidence
11:49

Enhanced Genetic Analysis of Single Human Bioparticles Recovered by Simplified Micromanipulation from Forensic ‘Touch DNA’ Evidence

Published on: March 9, 2015

Related Experiment Videos

Last Updated: Jul 7, 2026

DNA Extraction and Comparison Between Old and Fresh Necrophilic Fly Samples
06:33

DNA Extraction and Comparison Between Old and Fresh Necrophilic Fly Samples

Published on: May 3, 2024

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody
09:09

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody

Published on: September 27, 2024

Enhanced Genetic Analysis of Single Human Bioparticles Recovered by Simplified Micromanipulation from Forensic ‘Touch DNA’ Evidence
11:49

Enhanced Genetic Analysis of Single Human Bioparticles Recovered by Simplified Micromanipulation from Forensic ‘Touch DNA’ Evidence

Published on: March 9, 2015

Area of Science:

  • Forensic entomology
  • Molecular systematics
  • Population genetics

Background:

  • Molecular identification of Calliphoridae (blow flies) complements traditional methods for estimating post-mortem intervals (PMI).
  • Previous molecular studies often focused on localized species, neglecting intraspecific variation in globally distributed species.

Purpose of the Study:

  • To assess the species status of 27 forensically important Calliphoridae using phylogenetic analysis.
  • To evaluate the utility of the cytochrome c oxidase subunit I (COI) gene for species identification and to investigate intraspecific variation.

Main Methods:

  • Phylogenetic analysis of 1167 base pairs of the COI gene from 119 specimens representing 27 Calliphoridae species across 22 countries.
  • Comparative analysis of molecular data to resolve species boundaries and identify geographical variation.

Main Results:

  • The COI gene effectively identified most Calliphoridae species.
  • Phylogenetic analysis failed to monophyletically resolve Lucilia cuprina, Chrysomya megacephala, Ch. saffranea, Ch. albifrontalis, and Calliphora stygia.
  • Significant intraspecific geographical variation was observed in Chrysomya rufifacies and Lucilia cuprina.

Conclusions:

  • The COI gene is a valuable tool for identifying most forensically important Calliphoridae, but may require faster-evolving markers for recently diverged species.
  • Intraspecific variation necessitates careful consideration of geographical sampling for accurate molecular identification and PMI estimation.
  • Further research is needed to resolve species complexes and investigate potential cryptic species within globally distributed Calliphoridae.