Trex-online

Paste your sequences in the Phylip format
(no spaces in the species names; at least one space is required in the end of a species name) into the window :

File Pasted

Data example in the relaxed interleaved Phylip format

Data example in the sequential Phylip format

Notification

Email address (required field with bootstrap option; the results will be also sent to you by email)

Input Data

Data Type

Input sequences: interleaved or sequential

Substitution Model

Substitution model

Optimize equilibrium frequencies

Ts/tv ratio

Proportion of invariable sites

One category of substitution rate

Number of relative substitution rate categories

Gamma distribution parameter

'Middle' of each rate class

Tree Searching

Optimize tree topology with branch lengths

Starting tree

Starting tree file

Tree topology search operations

Branch Support

Non parametric bootstrap analysis

replicates

Approximate likelihood ratio test

Citation
“A simple, fast and accurate algorithm to estimate large phylogenies by maximum likelihood” Guindon S., Gascuel O. Systematic Biology 52(5):696-704

This site has been visited 2950947 times since Friday, November 25, 2005.