JAGuaR: junction alignments to genome for RNA-seq reads - PubMed (original) (raw)
JAGuaR: junction alignments to genome for RNA-seq reads
Yaron S Butterfield et al. PLoS One. 2014.
Abstract
JAGuaR is an alignment protocol for RNA-seq reads that uses an extended reference to increase alignment sensitivity. It uses BWA to align reads to the genome and reference transcript models (including annotated exon-exon junctions) specifically allowing for the possibility of a single read spanning multiple exons. Reads aligned to the transcript models are then re-mapped on to genomic coordinates, transforming alignments that span multiple exons into large-gapped alignments on the genome. While JAGuaR does not detect novel junctions, we demonstrate how JAGuaR generates fast and accurate transcriptome alignments, which allows for both sensitive and specific SNV calling.
Conflict of interest statement
Competing Interests: The authors have declared that no competing interests exist.
Figures
Figure 1. SNV concordance between tools for one read set (Sample 2).
a) Number of variants in dbSNP (v137) plotted against number of variants called at various levels of depth. Depth begins on far right at 6 bp and each point represents increasing depth of 1 bp coverage. b) Overlap of known SNVs called c) Overlap of known non-synonymous SNVs called d) Overlap of SNVs called in COSMIC. All SNP calls were assessed at depth of 6. *BWA-MEM.
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