Related Experiment Video
Updated: Jun 25, 2026
05:01
A Detailed Protocol for Physiological Parameters Acquisition and Analysis in Neurosurgical Critical Patients
Published on: October 17, 2017
7.4K
guoyi.run: One-step TNT script for maximum parsimony phylogenetic analysis
1Evolution & Ecology Research Centre; School of Biological; Earth and Environmental Sciences; University of New South Wales; Sydney 2052; Australia.; Australian Museum Research Institute; Australian Museum; 1 William St; Sydney 2010; Australia.. guoyi.zhang@austmus.gov.au.
Zootaxa
|October 21, 2025
Summary
Maximum parsimony analysis in phylogenetics is streamlined with guoyi.run, a new TNT script. This tool automates the process, simplifying complex maximum parsimony (MP) analyses for morphological data.
Area of Science:
- Phylogenetics and Evolutionary Biology
- Computational Biology
- Bioinformatics
Background:
- Maximum parsimony (MP) analysis is a fundamental method in phylogenetics, especially for datasets using morphological characters.
- The TNT software package is recognized for its speed and efficiency in performing MP analyses.
- TNT's extensive flexibility and numerous options present a steep learning curve for users.
Purpose of the Study:
- To introduce guoyi.run, a novel TNT script designed to simplify maximum parsimony (MP) analysis.
- To provide a fully automated, one-step pipeline for MP analysis using the TNT macro interpreter language.
- To enhance accessibility and efficiency for researchers conducting phylogenetic analyses with morphological data.
Main Methods:
- Development of a TNT script named guoyi.run.
- Implementation of a fully automated, one-step pipeline for MP analysis.
- Utilizing the TNT macro interpreter language for script functionality.
Main Results:
- The guoyi.run script offers a streamlined approach to MP analysis.
- Automation reduces the complexity and time associated with phylogenetic analyses in TNT.
- The script provides a user-friendly interface for a powerful analytical tool.
Conclusions:
- Guoyi.run significantly simplifies the application of maximum parsimony (MP) analysis in phylogenetics.
- The automated pipeline facilitates efficient analysis of morphological data using TNT.
- This script enhances the usability of TNT for a broader range of researchers in evolutionary biology.
Related Concept Videos
01:23Phylogeny
Phylogeny is concerned with the evolutionary diversification of organisms or groups of organisms. A group of organisms with a name is called a taxon (singular). Taxa (plural) can span different levels of the evolutionary hierarchy. For instance, the group containing all birds is a taxon (comprising the class Aves), and the group of all species of daisies (the genus Bellis) is a taxon. Phylogenies can likewise include just one genus (i.e., depict species relationships) or span an entire...
03:21Phylogenetic Trees
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...
02:54Evolutionary Relationships through Genome Comparisons
Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
03:21Phylogenetic Trees
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...
02:05Gene Evolution - Fast or Slow?
The genomes of eukaryotes are punctuated by long stretches of sequence which do not code for proteins or RNAs. Although some of these regions do contain crucial regulatory sequences, the vast majority of this DNA serves no known function. Typically, these regions of the genome are the ones in which the fastest change, in evolutionary terms, is observed, because there is typically little to no selection pressure acting on these regions to preserve their sequences.
In contrast, regions which code...
In contrast, regions which code...
01:28Microbial Phylogeny
Understanding the evolutionary relationships among microorganisms is fundamental to microbial ecology and taxonomy. Phylogenetic trees are essential tools for inferring these relationships, relying primarily on comparative analyses of molecular sequences such as DNA, RNA, or proteins. In microbial studies, these trees typically depict the evolutionary paths of diverse bacterial and archaeal species by mapping genetic differences accumulated over time.Phylogenetic trees are composed of tips,...