IQ-TREE 3 Now Available on Vecura

What is IQ-TREE 3?

IQ-TREE 3 is an advanced phylogenomic software for inferring maximum-likelihood (ML) phylogenetic trees from various sequence alignments. It offers key innovations such as stochastic NNI/SPR tree-search, ModelFinder for automatic substitution-model selection, and UFBoot2 ultrafast bootstrap. This tool is particularly useful for researchers in virology, population genetics, systematics, and comparative genomics who need to reconstruct evolutionary relationships among taxa.

What can users do with IQ-TREE 3 on Vecura?

With IQ-TREE 3 on Vecura, users can:

• Infer a maximum-likelihood phylogenetic tree from a multiple-sequence alignment.
• Select the best-fit substitution model automatically using ModelFinder.
• Compute ultrafast-bootstrap branch supports for assessing tree reliability.
• Obtain detailed reports and output files including ML trees, consensus trees, and more.

What the output means

The output provides a comprehensive set of files and information, such as the Newick formatted ML tree, log-likelihood, selected substitution model, and full IQ-TREE report. These outputs are essential for supporting scientific decision-making in evolutionary studies but should not replace experimental validation.

Why this matters

Phylogenetic inference is fundamental in life sciences, providing insights into the evolutionary history and relationships among organisms. IQ-TREE 3's enhanced features allow for faster and more accurate analysis of large-scale genomic data, making it a valuable resource for researchers without the need for complex technical infrastructure.

• Developed by: IQ-TREE team
• Source: Official GitHub repo
• Reference: IQ-TREE 3 paper (Wong et al. 2025)