A Systematic Evaluation of Single Cell RNA-seq Analysis Pipelines

October 11, 2019

Beate Vieth, Swati Parekh, Christoph Ziegenhain, Wolfgang Enard & Ines Hellmann

Nature Communications volume 10, Article number: 4667 (2019)

A Systematic Evaluation of Single Cell RNA-seq Analysis Pipelines

Abstract

The recent rapid spread of single cell RNA sequencing (scRNA-seq) methods has created a large variety of experimental and computational pipelines for which best practices have not yet been established. Here, we use simulations based on five scRNA-seq library protocols in combination with nine realistic differential expression (DE) setups to systematically evaluate three mapping, four imputation, seven normalisation and four differential expression testing approaches resulting in ~3000 pipelines, allowing us to also assess interactions among pipeline steps. We find that choices of normalisation and library preparation protocols have the biggest impact on scRNA-seq analyses. Specifically, we find that library preparation determines the ability to detect symmetric expression differences, while normalisation dominates pipeline performance in asymmetric DE-setups. Finally, we illustrate the importance of informed choices by showing that a good scRNA-seq pipeline can have the same impact on detecting a biological signal as quadrupling the sample size.

More info at: https://www.nature.com/articles/s41467-019-12266-7

For research purposes only, not intended for clinical diagnosis, treatment, or individual health assessments.
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