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Related Concept Videos

Microbial Phylogeny01:28

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,...
Phylogenetic Trees03:21

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 Trees03:21

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.
Phylogeny01:23

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.
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...
The Tree of Life - Bacteria, Archaea, Eukaryotes02:40

The Tree of Life - Bacteria, Archaea, Eukaryotes

The “tree of life” describes the evolution of life and the evolutionary relationships between organisms. The root of the tree is the common ancestor to all life on Earth. All other species radiate from this point, much like the branches of a tree. The numerous tips of these branches on the tree of life represent every living, or extant, species. Extinct species, which are species that no longer exist, can be found towards the center of the tree. Currently, these organisms, both extant and...

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Related Experiment Video

Updated: May 11, 2026

A Practical Guide to Phylogenetics for Nonexperts
12:00

A Practical Guide to Phylogenetics for Nonexperts

Published on: February 5, 2014

A beginner's guide to phylogenetics.

Roy D Sleator

    Microbial Ecology
    |April 30, 2013
    PubMed
    Summary
    This summary is machine-generated.

    Metagenomics and next-generation sequencing are advancing phylogenetics, the study of evolutionary relationships. This review covers key tree-building methods, challenges, and future directions in this dynamic field.

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    Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin
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    Creating and Applying a Reference to Facilitate the Discussion and Classification of Proteins in a Diverse Group

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    Last Updated: May 11, 2026

    A Practical Guide to Phylogenetics for Nonexperts
    12:00

    A Practical Guide to Phylogenetics for Nonexperts

    Published on: February 5, 2014

    Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin
    08:57

    Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin

    Published on: August 14, 2018

    Creating and Applying a Reference to Facilitate the Discussion and Classification of Proteins in a Diverse Group
    07:49

    Creating and Applying a Reference to Facilitate the Discussion and Classification of Proteins in a Diverse Group

    Published on: August 16, 2017

    Area of Science:

    • Evolutionary Biology
    • Genomics

    Background:

    • Metagenomics and high-throughput next-generation sequencing (NGS) have significantly impacted evolutionary biology.
    • These advancements necessitate new approaches in phylogenetics, the study of evolutionary relatedness.

    Purpose of the Study:

    • To review major tree-building strategies in phylogenetics.
    • To discuss current challenges and opportunities in the field.

    Main Methods:

    • Review of existing literature on phylogenetic tree-building methods.
    • Analysis of the impact of metagenomics and NGS on phylogenetic analysis.

    Main Results:

    • Identification of key tree-building strategies currently employed.
    • Discussion of significant challenges, including data analysis and interpretation.
    • Highlighting emerging opportunities driven by technological advancements.

    Conclusions:

    • Phylogenetics is rapidly evolving due to genomic technologies.
    • Continued development of tree-building methods is crucial.
    • Addressing current challenges will unlock future research potential.