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Updated: Mar 11, 2026

A Practical Guide to Phylogenetics for Nonexperts

A Practical Guide to Phylogenetics for Nonexperts

Published on: February 5, 2014

piqtree: a python package for seamless phylogenetic inference with IQ-TREE.

Robert Neil McArthur¹, Thomas King-Fung Wong^1,2,3, Yapeng Lang¹

¹Research School of Biology, Australian National University, Canberra, ACT, Australia.

Molecular Biology and Evolution

|March 9, 2026

Summary

This summary is machine-generated.

piqtree is a Python package simplifying phylogenetic inference using IQ-TREE. It integrates IQ-TREE

Keywords:

Jupyter Python bioinformatics cogent3 gene tree nonreversible Markov process phylogenetics

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Area of Science:

Computational Biology
Bioinformatics
Phylogenetics

Background:

Phylogenetic inference is crucial for understanding evolutionary relationships.
IQ-TREE is a high-performance engine for phylogenetic analysis.
Integrating complex bioinformatics tools into user-friendly workflows remains a challenge.

Purpose of the Study:

To introduce piqtree, an open-source Python package for controlling IQ-TREE.
To simplify the development of phylogenetic workflows through Python scripting.
To enhance interoperability between phylogenetic inference and other Python tools.

Main Methods:

piqtree wraps IQ-TREE's core algorithms as Python functions.
Leverages the cogent3 package for seamless integration with the Python ecosystem.
Provides functionalities for phylogenetic reconstruction, bootstrapping, model selection, and more.

Main Results:

piqtree offers computational and statistical performance equivalent to IQ-TREE.
Enables interactive phylogenetic analyses and visualization, e.g., in Jupyter notebooks.
Demonstrates simplified development of phylogenetic workflows via a case study.

Conclusions:

piqtree successfully bridges IQ-TREE's high-performance inference with user-friendly Python interfaces.
Facilitates easier development and execution of complex phylogenetic analyses.
Enhances accessibility and integration of advanced phylogenetic tools for researchers.