Assessment of duplication rates in RNA-Seq datasets.

Introduction to dupRadar

PCR clonal artefacts originating from NGS library preparation can affect both genomic as well as RNA-Seq applications when protocols are pushed to their limits. In RNA-Seq however the artifactual reads are not easy to tell apart from normal read duplication due to natural over-sequencing of highly expressed genes. Especially when working with little input material or single cells assessing the fraction of duplicate reads is an important quality control step for NGS data sets. Up to now there are only tools to calculate the global duplication rates that do not take into account the effect of gene expression levels which leaves them of limited use for RNA-Seq data.


To install this package, start R and enter:

if (!requireNamespace("BiocManager", quietly = TRUE))



To view documentation for the version of this package installed in your system, start R and enter:


or access the pkgdown documentation.


Imports (mandatory for core functionality)

  • Rsubread: Mapping, quantification and variant analysis of sequencing data.


Sayols S, Scherzinger D, Klein H (2016). “dupRadar: a Bioconductor package for the assessment of PCR artifacts in RNA-Seq data.” BMC Bioinformatics, 17, 428. doi: 10.1186/s12859-016-1276-2.