Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Phylogenetic Trees

Phylogenetic Trees

Phylogenetic trees come in many forms. It matters in which sequence the organisms are arranged from the bottom to the top of the tree, but the branches can rotate at their nodes without altering the information. The lines connecting individual nodes can be straight, angled, or even curved.

Phylogenetic Trees

Phylogenetic Trees

Phylogenetic trees come in many forms. It matters in which sequence the organisms are arranged from the bottom to the top of the tree, but the branches can rotate at their nodes without altering the information. The lines connecting individual nodes can be straight, angled, or even curved.

Phylogeny

Phylogeny

Phylogeny is concerned with the evolutionary diversification of organisms or groups of organisms. A group of organisms with a name is called a taxon (singular). Taxa (plural) can span different levels of the evolutionary hierarchy. For instance, the group containing all birds is a taxon (comprising the class Aves), and the group of all species of daisies (the genus Bellis) is a taxon. Phylogenies can likewise include just one genus (i.e., depict species relationships) or span an entire kingdom.

Applications of Molecular Taxonomy

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...

Evolutionary Relationships through Genome Comparisons

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...

Microbial Phylogeny

Microbial Phylogeny

Understanding the evolutionary relationships among microorganisms is fundamental to microbial ecology and taxonomy. Phylogenetic trees are essential tools for inferring these relationships, relying primarily on comparative analyses of molecular sequences such as DNA, RNA, or proteins. In microbial studies, these trees typically depict the evolutionary paths of diverse bacterial and archaeal species by mapping genetic differences accumulated over time.Phylogenetic trees are composed of tips,...

You might also read

Related Articles

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

Sort by

Same author

Neural repair by NT3-chitosan via enhancement of endogenous neurogenesis after adult focal aspiration brain injury.

Biomaterials·2017

Same author

<i>Pseudomonas aeruginosa</i> adaptation and diversification in the non-cystic fibrosis bronchiectasis lung.

The European respiratory journal·2017

Same author

Engagement of the medical-technology sector with society.

Science translational medicine·2017

Same author

A Nomogram for Calculation of Maximum Recommended Dose by Volume of Local Anesthetic in Pediatric Dentistry.

Pediatric dentistry·2017

Same author

Osteoporosis, obesity, and sarcopenia on abdominal CT: a review of epidemiology, diagnostic criteria, and management strategies for the reporting radiologist.

Abdominal radiology (New York)·2017

Same author

Chronic Granulomatous Disease Presenting as Aspergillus Fumigatus Pneumonia in a Previously Healthy Young Woman.

The American journal of case reports·2017

Same journal

OpenIMC: an open-source platform for analyzing single-cell and spatial proteomics by imaging mass cytometry.

BMC bioinformatics·2026

Same journal

NAP: an open source pipeline for cross-domain microbiome profiling using Nanopore sequencing-derived amplicon data.

BMC bioinformatics·2026

Same journal

SurvGME: an R package for survival analysis with graphical and measurement error models.

BMC bioinformatics·2026

Same journal

SimMapNet: a Bayesian framework for gene regulatory network inference using gene ontology similarities as external hint.

BMC bioinformatics·2026

Same journal

Dual channel drug-drug interactions extraction based on cross attention.

BMC bioinformatics·2026

Same journal

FeSseqdb: a curated sequence-level database and interpretable machine learning framework for identifying iron-sulfur proteins.

BMC bioinformatics·2026

See all related articles

Search research articles

Related Experiment Video

Updated: May 21, 2026

A Practical Guide to Phylogenetics for Nonexperts

A Practical Guide to Phylogenetics for Nonexperts

Published on: February 5, 2014

Quartet decomposition server: a platform for analyzing phylogenetic trees.

Fenglou Mao¹, David Williams, Olga Zhaxybayeva

¹Department of Biochemistry and Molecular Biology, University of Georgia, 120 Green St, Athens, GA 30622, USA.

BMC Bioinformatics

|June 9, 2012

Summary

This summary is machine-generated.

This study introduces a web server for Quartet Decomposition, a method that analyzes gene family conflicts in prokaryotic comparative genomics. The tool helps identify statistically supported phylogenetic conflicts, improving the accuracy of phylogenomic analyses.

More Related Videos

Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin

Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin

Published on: August 14, 2018

The ITS2 Database

The ITS2 Database

Published on: March 12, 2012

Related Experiment Videos

Last Updated: May 21, 2026

A Practical Guide to Phylogenetics for Nonexperts

A Practical Guide to Phylogenetics for Nonexperts

Published on: February 5, 2014

Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin

Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin

Published on: August 14, 2018

The ITS2 Database

The ITS2 Database

Published on: March 12, 2012

Area of Science:

Genomics
Bioinformatics
Computational Biology

Background:

Prokaryotic genetic exchange necessitates methods for identifying phylogenetic signals and conflicts within gene families.
Phylogenomic analyses frequently encounter challenges due to horizontal gene transfer.
Decomposition of gene trees into quartets is a statistically robust technique for analyzing phylogenetic signals.

Purpose of the Study:

To present a user-friendly web server for performing Quartet Decomposition analyses.
To facilitate the identification of gene families in conflict with the overall phylogenetic signal.
To aid researchers in comparative genomics and phylogenomics.

Main Methods:

The web server decomposes input gene phylogenies into embedded quartets.
It generates a Quartet Spectrum and visualizes data using split networks.
Input phylogenies can be represented by bootstrap replicates or posterior distribution samples.

Main Results:

A web server for Quartet Decomposition is now available.
The server provides data download options for further analysis.
The tool enables the generation of Quartet Spectra and split networks from gene phylogenies.

Conclusions:

The Quartet Decomposition server offers a convenient platform for analyzing phylogenetic conflicts.
It empowers users to detect statistically supported phylogenetic conflicts within genomic data.
This tool enhances the capabilities of comparative genomics and phylogenomic research.