Cited by 72Single-cell and spatial transcriptomicsGene expression and cancer classificationBioinformatics and Genomic Networks

Valid Post-clustering Differential Analysis for Single-Cell RNA-Seq

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Zhang, Jesse M., Kamath, Govinda M., Tse, David N.·2019·Cell Systems

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Abstract

Single-cell computational pipelines involve two critical steps: organizing cells (clustering) and identifying the markers driving this organization (differential expression analysis). State-of-the-art pipelines perform differential analysis after clustering on the same dataset. We observe that because clustering "forces" separation, reusing the same dataset generates artificially low p values and hence false discoveries. We introduce a valid post-clustering differential analysis framework, which corrects for this problem. We provide software at https://github.com/jessemzhang/tn_test.

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Crossref · 10.1016/j.cels.2019.07.012

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  • Wilcoxon rank-sum tests performed best for identifying marker genes.

    “For this purpose, Wilcoxon rank-sum tests performed best, but owing to the nature of clustering, P values can be inflated and might lead to false discoveries, as the same data are used to define the labels that we test for differences between60,61.”

    From Best practices for single-cell analysis across modalities (2023) · cites this paper as [61]

  • P values from marker gene tests can be inflated and lead to false discoveries because the same data are used to define labels and test differences.

    “For this purpose, Wilcoxon rank-sum tests performed best, but owing to the nature of clustering, P values can be inflated and might lead to false discoveries, as the same data are used to define the labels that we test for differences between60,61.”

    From Best practices for single-cell analysis across modalities (2023) · cites this paper as [61]

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Authors
Zhang, J. M., Kamath, G. M., & Tse, D. N.
Affiliations
Stanford University (US)
Corresponding author
Tse, David N.
Venue
Cell Systems
Publisher
Elsevier BV
Published
2019-10
Volume
9
Issue
4
Pages
383-392.e6
ISSN
2405-4712 (ISSN-L)
OpenAlex
W2973156019
Cited by
72
References
41
Citations by year
2026: 5 · 2025: 12 · 2024: 13 · 2023: 9 · 2022: 8 · 2021: 14 · 2020: 7 · 2019: 3 · 2015: 1
FWCI
2.65
Type
journal article
Language
en
Open access
Locations
  • Cell Systems (publishedVersion)
  • SSRN Electronic Journal (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Human Genome Research Institute (R01HG008164)
  • Guangxi Experiment Center of Information Science
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 › Bioinformatics and Genomic Networks
Keywords
single-cell RNA sequencing, cell clustering, false discovery, p-value adjustment, marker detection, differential expression analysis
MeSH terms
Humans, Software, Selection Bias, Cluster Analysis, Sequence Analysis, RNA, Computational Biology, Gene Expression Profiling, Single-Cell Analysis, Datasets as Topic

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