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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.The length of the branches can depict time or the relative amount of change among organisms. For instance, the branch length might indicate the number of amino acid changes in the sequence that underlies the...

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Updated: Jul 5, 2026

A Practical Guide to Phylogenetics for Nonexperts

A Practical Guide to Phylogenetics for Nonexperts

Published on: February 5, 2014

PhyloWidget: web-based visualizations for the tree of life.

Gregory E Jordan¹, William H Piel

¹EMBL-EBI, Hinxton, Cambridge, CB10 1SD, UK and Peabody Museum of Natural History, Yale University, P.O. Box 208118, New Haven, CT 06520, USA.

Bioinformatics (Oxford, England)

|May 20, 2008

Summary

PhyloWidget offers a web-based tool for visualizing and manipulating phylogenetic trees. Its API enables easy integration for interactive tree viewing in various databases.

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Area of Science:

Bioinformatics
Computational Biology
Evolutionary Biology

Background:

Phylogenetic trees are crucial for understanding evolutionary relationships.
Visualizing and manipulating large phylogenetic datasets can be challenging.
Existing tools may lack flexibility or ease of integration.

Purpose of the Study:

To introduce PhyloWidget, a novel web-based tool for phylogenetic tree visualization and manipulation.
To provide a flexible and accessible platform for researchers working with phylogenetic data.
To facilitate the integration of interactive tree viewing into existing biological databases.

Main Methods:

PhyloWidget is developed as a web-based application accessible via a URL.
It supports the visualization and interactive manipulation of phylogenetic trees.
A URL-based API is implemented for seamless integration with external databases.

Main Results:

PhyloWidget provides an intuitive interface for exploring phylogenetic trees.
The tool efficiently handles medium- to large-sized tree data.
The API allows for customized and interactive tree viewing directly from linked databases.

Conclusions:

PhyloWidget is a valuable resource for the bioinformatics community.
It enhances the accessibility and interactivity of phylogenetic data visualization.
The tool's API facilitates broader application and integration in evolutionary studies.