Phylogenetic tree examples.
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What a phylogenetic tree is.
A phylogenetic tree is a branching hypothesis about evolutionary relationships. Its tips are the taxa being compared, its internal nodes represent shared ancestors, and its branches connect the lineages.
In a phylogram, branch lengths can represent genetic change; in a chronogram, they represent time. Labels and bootstrap support values help a reader see both the named groups and the confidence in their splits.
- Standard
- Newick + NHX extensions
- Engine
- schematex-phylo
- Editable
- Double-click text, drag nodes
- Export
- SVG · PNG · PDF
Who uses phylogenetic trees.
Present inferred relationships among species, genes or populations with named clades and support values.
Explain how viral variants are related and distinguish earlier lineages from later branches.
Compare major animal groups and discuss common ancestry in a lecture, lab report or study guide.
How to make a phylogenetic tree in three steps.
Describe it
One paragraph is enough to start.
See the drawing
Drawn by the right engine.
Say what changes
Every edit keeps a version.
Common questions
What is a phylogenetic tree?
A phylogenetic tree, also called an evolutionary tree, depicts hypothesized relationships among organisms, genes or other taxa. Related tips meet at internal nodes that represent shared ancestors.
What do branch lengths mean on a phylogenetic tree?
Their meaning depends on the tree. In a phylogram, length usually represents the amount of evolutionary or genetic change. In a chronogram, it represents time. In a cladogram, lengths have no quantitative meaning.
What is bootstrap support?
Bootstrap support is a value attached to a branch or node that indicates how consistently that split appeared across repeated resampled analyses. Higher values generally indicate stronger support for that grouping.
How do I create a phylogenetic tree?
Describe the taxa and the relationships you want to show. Add branch lengths, dates or support values if those matter, then ask for edits to clade labels, layout or included lineages.
Other drawings for the same work.
Draw your first phylogenetic tree now.
Free account, no card. Describe the taxa and their relationships to start.
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