Cited by 35Single-cell and spatial transcriptomicsGene expression and cancer classificationGenomics and Phylogenetic Studies

A Comprehensive Survey of Statistical Approaches for Differential Expression Analysis in Single-Cell RNA Sequencing Studies

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Das, Samarendra, Rai, Anil, Merchant, Michael L., Cave, Matthew C., Rai, Shesh N.·2021·Genes

Abstract

Single-cell RNA-sequencing (scRNA-seq) is a recent high-throughput sequencing technique for studying gene expressions at the cell level. Differential Expression (DE) analysis is a major downstream analysis of scRNA-seq data. DE analysis the in presence of noises from different sources remains a key challenge in scRNA-seq. Earlier practices for addressing this involved borrowing methods from bulk RNA-seq, which are based on non-zero differences in average expressions of genes across cell populations. Later, several methods specifically designed for scRNA-seq were developed. To provide guidance on choosing an appropriate tool or developing a new one, it is necessary to comprehensively study the performance of DE analysis methods. Here, we provide a review and classification of different DE approaches adapted from bulk RNA-seq practice as well as those specifically designed for scRNA-seq. We also evaluate the performance of 19 widely used methods in terms of 13 performance metrics on 11 real scRNA-seq datasets. Our findings suggest that some bulk RNA-seq methods are quite competitive with the single-cell methods and their performance depends on the underlying models, DE test statistic(s), and data characteristics. Further, it is difficult to obtain the method which will be best-performing globally through individual performance criterion. However, the multi-criteria and combined-data analysis indicates that DECENT and EBSeq are the best options for DE analysis. The results also reveal the similarities among the tested methods in terms of detecting common DE genes. Our evaluation provides proper guidelines for selecting the proper tool which performs best under particular experimental settings in the context of the scRNA-seq.

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  1. [45]Frazee A. Pertea G. Jaffe A. Langmead B. Salzberg S. Leek J. Flexible analysis of transcriptome assemblies with Ballgown bioRxiv 2014 10.1101/003665 · DOI

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Authors
Das, S., Rai, A., Merchant, M. L., Cave, M. C., & Rai, S. N.
Affiliations
  • Indian Agricultural Statistics Research Institute (IN)
  • University of Louisville (US)
Corresponding author
Rai, Shesh N.
Venue
Genes
Publisher
MDPI AG
Published
2021-12-02
Volume
12
Issue
12
Pages
1947
ISSN
2073-4425 (ISSN-L)
OpenAlex
W3217753204
Cited by
35
References
83
Citations by year
2026: 2 · 2025: 9 · 2024: 10 · 2023: 7 · 2022: 6 · 2021: 1
FWCI
1.88
Type
journal article
Language
en
Open access
Locations
  • Genes (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Indian Council of Agricultural Research (OM No. 18(02)/2016-EQR/Edn.)
  • National Institutes of Health (5P20GM113226, PI: McClain; 1P42ES023716, PI: Srivastava; 5P30GM127607-02, PI: Jones; 1P20GM125504-01, PI: Lamont; 2U54HL120163, PI: Bhatnagar/Robertson; 1P20GM135004, PI: Yan; 1R35ES0238373-01, PI: Cave; 1R01ES029846, PI: Bhatnagar; 1R01ES027778-01A1, PI:)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Single-cell and spatial transcriptomics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene expression and cancer classification
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Phylogenetic Studies
Keywords
differential expression analysis, single-cell RNA sequencing, comparison of statistical methods, method performance evaluation, method selection, performance indicators
MeSH terms
RNA-Seq, Algorithms, Animals, Humans, Software, Sequence Analysis, RNA, Gene Expression Profiling, Databases, Nucleic Acid, Mice, Single-Cell Analysis

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