phylogenetics

Build rooted phylogenetic trees from biological sequences using MAFFT, IQ-TREE 2, and ETE3.

Updated Jul 1, 2026
One-click install
npx skills add https://github.com/jasrajtulsi/GRAD-SCOPE --skill phylogenetics-jasrajtulsi
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: phylogenetics
Source: https://github.com/jasrajtulsi/GRAD-SCOPE/tree/main/.claude/skills/phylogenetics
Command: npx skills add https://github.com/jasrajtulsi/GRAD-SCOPE --skill phylogenetics-jasrajtulsi

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires ete3, mafft, iqtree2, FastTree, and includes scripts (resource) and references (resource) components.

What problem does it solve?

Phylogenetic analysis often requires multiple specialized tools and careful interpretation, and this Skill streamlines the process of turning biological sequences into rooted, supported evolutionary trees.

Core Features & Use Cases

  • Aligns DNA or protein sequences with MAFFT to prepare data for tree building.
  • Infers maximum-likelihood trees with IQ-TREE 2 and offers FastTree for faster large-scale analyses.
  • Visualizes, roots, and prunes trees with ETE3 for clearer downstream interpretation.
  • Supports evolutionary research, microbial genomics, viral phylodynamics, protein family analysis, and molecular clock studies.

Quick Start

Ask the phylogenetics skill to align the sequences, infer a tree, and generate a rooted visualization for my dataset.

Frequently Asked Questions about phylogenetics

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I build a phylogenetic tree from biological sequences?

To build a phylogenetic tree, you must perform multiple sequence alignment with MAFFT, infer the tree using IQ-TREE 2 or FastTree, and visualize the results with ETE3. This workflow processes DNA or protein sequences to generate rooted, supported evolutionary trees.

What is the best way to align DNA or protein sequences for evolutionary analysis?

MAFFT is used to align DNA or protein sequences, preparing the biological data for accurate phylogenetic tree building. Proper sequence alignment is a required prerequisite before inferring maximum-likelihood trees for evolutionary research or molecular clock studies.

Does IQ-TREE 2 work with FastTree for large-scale phylogenetics?

IQ-TREE 2 infers maximum-likelihood trees, while FastTree offers a faster approach for large-scale phylogenetic analyses. Both are supported for tree inference, allowing you to choose based on dataset size and computational needs.

Can I root and visualize phylogenetic trees using ETE3?

ETE3 is used to visualize, root, and prune phylogenetic trees, providing clearer downstream interpretation for evolutionary research. This step is essential for interpreting the final output of your sequence alignment and tree inference workflows.

What types of evolutionary studies are supported by this phylogenetics workflow?

The phylogenetics workflow supports evolutionary research, microbial genomics, viral phylodynamics, protein family studies, and molecular clock analyses. It handles both small and large biological datasets across these specific domains.

When should I use FastTree instead of IQ-TREE 2 for tree inference?

FastTree is recommended for faster large-scale phylogenetic analyses, whereas IQ-TREE 2 is used for standard maximum-likelihood tree inference. The choice depends on your dataset size and the computational resources available.