AIR: A batch-oriented web program package for construction of supermatrices ready for phylogenomic analyses

Item Type Journal Article
Author Surendra Kumar
Author Asmund Skjaeveland
Author Russell Orr
Author Pal Enger
Author Torgeir Ruden
Author Bjorn-Helge Mevik
Author Fabien Burki
Author Andreas Botnen
Author Kamran Shalchian-Tabrizi
URL http://www.biomedcentral.com/1471-2105/10/357
Volume 10
Issue 1
Pages 357
Publication BMC Bioinformatics
ISSN 1471-2105
Date 2009
DOI 10.1186/1471-2105-10-357
Accessed 2009-12-30 14:20:48
Library Catalog BioMed Central and More
Abstract BACKGROUND:Large multigene sequence alignments have over recent years been increasingly employed for phylogenomic reconstruction of the eukaryote tree of life. Such supermatrices of sequence data are preferred over single gene alignments as they contain vastly more information about ancient sequence characteristics, and are thus more suitable for resolving deeply diverging relationships. However, as alignments are expanded, increasingly numbers of sites with misleading phylogenetic information are also added. Therefore, a major goal in phylogenomic analyses is to maximize the ratio of information to noise; this can be achieved by the reduction of fast evolving sites.RESULTS:Here we present a batch-oriented web-based program package, named AIR that allows 1) transformation of several single genes to one multigene alignment, 2) identification of evolutionary rates in multigene alignments and 3) removal of fast evolving sites. These three processes can be done with the programs AIR-Appender, AIR-Identifier, and AIR-Remover (AIR), which can be used independently or in a semi-automated pipeline. AIR produces user-friendly output files with filtered and non-filtered alignments where residues are colored according to their evolutionary rates. Other bioinformatics applications linked to the AIR package are available at the Bioportal http://www.bioportal.uio.no, University of Oslo; together these greatly improve the flexibility, efficiency and quality of phylogenomic analyses.CONCLUSION:The AIR program package allows for efficient creation of multigene alignments and better assessment of evolutionary rates in sequence alignments. Removing fast evolving sites with the AIR programs has been employed in several recent phylogenomic analyses resulting in improved phylogenetic resolution and increased statistical support for branching patterns among the early diverging eukaryotes.
Title AIR: A batch-oriented web program package for construction of supermatrices ready for phylogenomic analyses
Short Title AIR
Date Added 2009-12-30 09:20
Date Modified 2009-12-30 09:20

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