Fast computation and applications of genome mappability

We present a fast mapping-based algorithm to compute the mappability of each region of a reference genome up to a specified number of mismatches. Knowing the mappability of a genome is crucial for the interpretation of massively parallel sequencing experiments. We investigate the properties of the m...

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Veröffentlicht in:PloS one 2012-01, Vol.7 (1), p.e30377-e30377
Hauptverfasser: Derrien, Thomas, Estellé, Jordi, Marco Sola, Santiago, Knowles, David G, Raineri, Emanuele, Guigó, Roderic, Ribeca, Paolo
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container_title PloS one
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creator Derrien, Thomas
Estellé, Jordi
Marco Sola, Santiago
Knowles, David G
Raineri, Emanuele
Guigó, Roderic
Ribeca, Paolo
description We present a fast mapping-based algorithm to compute the mappability of each region of a reference genome up to a specified number of mismatches. Knowing the mappability of a genome is crucial for the interpretation of massively parallel sequencing experiments. We investigate the properties of the mappability of eukaryotic DNA/RNA both as a whole and at the level of the gene family, providing for various organisms tracks which allow the mappability information to be visually explored. In addition, we show that mappability varies greatly between species and gene classes. Finally, we suggest several practical applications where mappability can be used to refine the analysis of high-throughput sequencing data (SNP calling, gene expression quantification and paired-end experiments). This work highlights mappability as an important concept which deserves to be taken into full account, in particular when massively parallel sequencing technologies are employed. The GEM mappability program belongs to the GEM (GEnome Multitool) suite of programs, which can be freely downloaded for any use from its website (http://gemlibrary.sourceforge.net).
doi_str_mv 10.1371/journal.pone.0030377
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subjects Algorismes
Algorithms
Biochemistry, Molecular Biology
Bioinformatics
Biologia computacional
Biology
Computational Biology
Computational Biology - methods
Computer Science
Deoxyribonucleic acid
DNA
DNA sequencing
Experiments
Gene expression
Gene mapping
Gene sequencing
Genetic research
Genoma humà
Genome, Human
Genome, Human - genetics
Genomes
Genomics
High-Throughput Nucleotide Sequencing
High-Throughput Nucleotide Sequencing - methods
Humans
Life Sciences
Multiprocessing
Mètodes
Phylogenetics
Quantitative Methods
Ribonucleic acid
RNA
Sequence Analysis, DNA
Sequence Analysis, DNA - methods
Seqüència de nucleòtids
Single nucleotide polymorphisms
Single-nucleotide polymorphism
Studies
Technology application
Transcription factors
title Fast computation and applications of genome mappability
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