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DElite: a tool for integrated differential expression analysis.

Davide Baldazzi1, Michele Doni1, Beatrice Valenti1

  • 1Unit of Oncogenetics and Functional Oncogenomics (CRO), Centro di Riferimento Oncologico di Aviano (CRO Aviano) IRCCS, Aviano, Italy.

Frontiers in Genetics
|December 5, 2024
PubMed
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DElite simplifies differential gene expression analysis by integrating four leading R tools. This package offers combined outputs and visualizations, improving DE gene detection, especially in small datasets.

Area of Science:

  • Genomics
  • Bioinformatics
  • Statistical Genetics

Background:

  • Differential gene expression (DE) analysis is crucial in genomic research for comparing biological conditions.
  • Numerous DE analysis tools exist, utilizing diverse normalization and statistical methods.
  • A need exists for simplified, integrated tools for non-expert users.

Purpose of the Study:

  • To introduce DElite, an R package designed to streamline DE analysis.
  • To provide a unified interface for four advanced DE tools: edgeR, limma, DESeq2, and dearseq.
  • To enhance DE gene detection through combined statistical outputs and improved interpretability.

Main Methods:

  • Integration of edgeR, limma, DESeq2, and dearseq within a single R package.
  • Development of a command-line interface for simplified DE analysis.
Keywords:
NGSR packageRNA-seqSoftwarebioinformaticscombination methodsdifferential expression analysisgene expression

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  • Implementation of a statistically combined output from the integrated tools.
  • Generation of comprehensive plots and tables for analysis interpretation.

    • Main Results:

    • DElite successfully integrates four state-of-the-art DE analysis tools.
    • A single command line enables users to obtain outputs from all integrated tools.
    • Combined outputs demonstrate improved performance in detecting DE genes, particularly in small datasets, supported by in vitro validation.
    • Comprehensive visualizations and tables facilitate result interpretation.

    Conclusions:

    • DElite offers an accessible yet powerful solution for differential gene expression analysis.
    • The package enhances DE gene identification through tool integration and combined statistical approaches.
    • DElite supports both novice users and advanced researchers through its user-friendly design and open-source customization options.