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A Practical Guide to Phylogenetics for Nonexperts

A Practical Guide to Phylogenetics for Nonexperts

Published on: February 5, 2014

Fast and robust multiple sequence alignment with phylogeny-aware gap placement.

Adam M Szalkowski¹

¹Department of Computer Science, ETH Zürich, Universitätstrasse, Switzerland. adam.szalkowski@inf.ethz.ch

BMC Bioinformatics

|June 15, 2012

Summary

This summary is machine-generated.

ProGraphMSA, a novel multiple sequence alignment tool, generates accurate alignments by integrating graph-based representations and phylogeny-aware gap placement. It demonstrates robust performance and efficiency in benchmark tests.

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Area of Science:

Bioinformatics
Computational Biology
Genomics

Background:

ProGraphMSA is an advanced multiple sequence alignment (MSA) tool.
It generates phylogenetically sound gap patterns.
It accommodates alternative splicing and guide tree errors.

Purpose of the Study:

To introduce ProGraphMSA, a novel MSA tool.
To enhance alignment accuracy and robustness.
To provide efficient computational performance.

Main Methods:

Incorporates a graph-based sequence representation.
Utilizes the phylogeny-aware gap placement algorithm from Prank.
Accounts for substitution pattern variations using context-specific profiles (similar to CS-Blast).
Estimates amino acid frequencies from input data.

Main Results:

ProGraphMSA achieves robust performance in benchmark tests.
It demonstrates competitive execution times.
The tool produces phylogenetically sensible gap patterns.

Conclusions:

ProGraphMSA offers a significant advancement in multiple sequence alignment.
The tool balances accuracy with computational efficiency.
It is suitable for various bioinformatics applications requiring accurate MSA.