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Related Concept Videos

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...
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,...
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...

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Updated: May 22, 2026

A Practical Guide to Phylogenetics for Nonexperts
12:00

A Practical Guide to Phylogenetics for Nonexperts

Published on: February 5, 2014

TreeSnatcher plus: capturing phylogenetic trees from images.

Thomas Laubach1, Arndt von Haeseler, Martin J Lercher

  • 1Department of Bioinformatics, Heinrich-Heine-University Duesseldorf, Universitaetsstrasse 1, Duesseldorf 40225, Germany. laubach@cs.uni-duesseldorf.de

BMC Bioinformatics
|May 26, 2012
PubMed
Summary
This summary is machine-generated.

TreeSnatcher Plus software semi-automatically converts phylogenetic tree images into machine-readable Newick format. This tool aids in preserving digital phylogenies for future evolutionary research.

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Last Updated: May 22, 2026

A Practical Guide to Phylogenetics for Nonexperts
12:00

A Practical Guide to Phylogenetics for Nonexperts

Published on: February 5, 2014

The ITS2 Database
16:17

The ITS2 Database

Published on: March 12, 2012

Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin
08:57

Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin

Published on: August 14, 2018

Area of Science:

  • Computational Biology
  • Evolutionary Biology

Background:

  • Phylogenetic trees are crucial for evolutionary analyses but lack machine-readable formats.
  • Extracting data from phylogenetic tree images is challenging for digital preservation.

Purpose of the Study:

  • To develop software for semi-automatic conversion of phylogenetic tree images into a machine-readable format.
  • To facilitate the digital preservation and accessibility of phylogenetic data.

Main Methods:

  • TreeSnatcher Plus, a GUI-driven JAVA application, was developed.
  • The software employs image pre-processing and user-assisted topology detection.
  • It supports multifurcating and arbitrarily shaped trees in pixel images.

Main Results:

  • TreeSnatcher Plus generates Newick format for phylogenetic trees from images.
  • The application includes image correction and topology refinement tools.
  • It can optionally include branch lengths for various tree layouts.

Conclusions:

  • TreeSnatcher Plus reliably converts phylogenetic tree figures into a machine-readable format.
  • The software handles diverse illustration styles with user assistance.
  • It addresses the current limitations in fully automated digitization of phylogenetic trees.