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PEAT: an intelligent and efficient paired-end sequencing adapter trimming algorithm.


ABSTRACT: BACKGROUND: In modern paired-end sequencing protocols short DNA fragments lead to adapter-appended reads. Current paired-end adapter removal approaches trim adapter by scanning the fragment of adapter on the 3' end of the reads, which are not competent in some applications. RESULTS: Here, we propose a fast and highly accurate adapter-trimming algorithm, PEAT, designed specifically for paired-end sequencing. PEAT requires no a priori adaptor sequence, which is convenient for large-scale meta-analyses. We assessed the performance of PEAT with many adapter trimmers in both simulated and real life paired-end sequencing libraries. The importance of adapter trimming was exemplified by the influence of the downstream analyses on RNA-seq, ChIP-seq and MNase-seq. Several useful guidelines of applying adapter trimmers with aligners were suggested. CONCLUSIONS: PEAT can be easily included in the routine paired-end sequencing pipeline. The executable binaries and the standalone C++ source code package of PEAT are freely available online.

SUBMITTER: Li YL 

PROVIDER: S-EPMC4331701 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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PEAT: an intelligent and efficient paired-end sequencing adapter trimming algorithm.

Li Yun-Lung YL   Weng Jui-Cheng JC   Hsiao Chiung-Chih CC   Chou Min-Te MT   Tseng Chin-Wen CW   Hung Jui-Hung JH  

BMC bioinformatics 20150121


<h4>Background</h4>In modern paired-end sequencing protocols short DNA fragments lead to adapter-appended reads. Current paired-end adapter removal approaches trim adapter by scanning the fragment of adapter on the 3' end of the reads, which are not competent in some applications.<h4>Results</h4>Here, we propose a fast and highly accurate adapter-trimming algorithm, PEAT, designed specifically for paired-end sequencing. PEAT requires no a priori adaptor sequence, which is convenient for large-sc  ...[more]

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