TagCleaner: Identification and removal of tag sequences from genomic and metagenomic datasets

BMC Bioinformatics

Software

Forest Rohwer¹  Yan Wei Lim¹  Robert Schmieder²  Robert Edwards³ 

[1] Department of Biology, San Diego State University, San Diego, CA, USA;Department of Computer Science, San Diego State University, San Diego, CA, USA;Computational Science Research Center, San Diego State University, San Diego, CA, USA;Department of Computer Science, San Diego State University, San Diego, CA, USA;Mathematics and Computer Science Division, Argonne National Laboratory, Argonne, IL, USA;

关键词: Metagenomic Library;    Filter Parameter;    FASTQ File;    Metagenomic Dataset;    Approximate String Match;   

DOI  :  10.1186/1471-2105-11-341

 received in 2010-03-06, accepted in 2010-06-23,  发布年份 2010

来源: Springer

【 摘 要 】

BackgroundSequencing metagenomes that were pre-amplified with primer-based methods requires the removal of the additional tag sequences from the datasets. The sequenced reads can contain deletions or insertions due to sequencing limitations, and the primer sequence may contain ambiguous bases. Furthermore, the tag sequence may be unavailable or incorrectly reported. Because of the potential for downstream inaccuracies introduced by unwanted sequence contaminations, it is important to use reliable tools for pre-processing sequence data.ResultsTagCleaner is a web application developed to automatically identify and remove known or unknown tag sequences allowing insertions and deletions in the dataset. TagCleaner is designed to filter the trimmed reads for duplicates, short reads, and reads with high rates of ambiguous sequences. An additional screening for and splitting of fragment-to-fragment concatenations that gave rise to artificial concatenated sequences can increase the quality of the dataset. Users may modify the different filter parameters according to their own preferences.ConclusionsTagCleaner is a publicly available web application that is able to automatically detect and efficiently remove tag sequences from metagenomic datasets. It is easily configurable and provides a user-friendly interface. The interactive web interface facilitates export functionality for subsequent data processing, and is available at http://edwards.sdsu.edu/tagcleaner.

【 授权许可】

CC BY   
© Schmieder et al; licensee BioMed Central Ltd. 2010