Nucleic Acids Research Advance Access originally published online on May 8, 2009
Nucleic Acids Research 2009 37(11):e78; doi:10.1093/nar/gkp295
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Nucleic Acids Research, 2009, Vol. 37, No. 11 e78
© 2009 The Author(s)
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.0/uk/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Methods Online |
TARGeT: a web-based pipeline for retrieving and characterizing gene and transposable element families from genomic sequences
Department of Plant Biology, University of Georgia, Athens, GA 30602, USA
*To whom correspondence should be addressed. Tel: +1 706-542-1810; Fax: +1 706-542-1805; Email: sue{at}plantbio.uga.edu
Received March 7, 2009. Revised April 15, 2009. Accepted April 15, 2009.
Gene families compose a large proportion of eukaryotic genomes. The rapidly expanding genomic sequence database provides a good opportunity to study gene family evolution and function. However, most gene family identification programs are restricted to searching protein databases where data are often lagging behind the genomic sequence data. Here, we report a user-friendly web-based pipeline, named TARGeT (Tree Analysis of Related Genes and Transposons), which uses either a DNA or amino acid seed query to: (i) automatically identify and retrieve gene family homologs from a genomic database, (ii) characterize gene structure and (iii) perform phylogenetic analysis. Due to its high speed, TARGeT is also able to characterize very large gene families, including transposable elements (TEs). We evaluated TARGeT using well-annotated datasets, including the ascorbate peroxidase gene family of rice, maize and sorghum and several TE families in rice. In all cases, TARGeT rapidly recapitulated the known homologs and predicted new ones. We also demonstrated that TARGeT outperforms similar pipelines and has functionality that is not offered elsewhere.