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ZENODO
Software . 2025
License: CC BY NC ND
Data sources: ZENODO
ZENODO
Software . 2026
Data sources: Datacite
ZENODO
Software . 2025
License: CC BY NC ND
Data sources: Datacite
ZENODO
Software . 2026
Data sources: Datacite
ZENODO
Software . 2026
Data sources: Datacite
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Advanced qPCR Analysis Pipeline: A Reproducible R Framework for Automated Gene Expression Quantification and Visualization

Authors: Noorollahi, Hossein;

Advanced qPCR Analysis Pipeline: A Reproducible R Framework for Automated Gene Expression Quantification and Visualization

Abstract

Abstract This software repository enables the automated, high-throughput analysis of Quantitative Real-Time PCR (qPCR) data using the R programming language. Developed to enhance reproducibility in molecular oncology and genetics research, this pipeline streamlines the transition from raw Cycle Threshold (Ct) values to statistically validated publication-quality figures. Methodology The pipeline implements the comparative Ct method (Livak method, 2−ΔΔCt) to calculate relative gene expression fold changes normalized to a reference gene (e.g., GAPDH). It incorporates rigorous statistical testing, utilizing Welch’s t-test (accounting for unequal variances) to determine significance (p-values) and calculating 95% Confidence Intervals (CI) for precision estimation. Key Capabilities: Data Parsing: Flexible input handling for standard CSV formats.Statistical Analysis: Automated computation of Fold Change, log2 Fold Change, Standard Error (SE), and significance levels. Advanced Visualization: Generation of high-resolution plots including Global Expression Profiles (Bar Plots), Treatment-Specific Volcano Plots, and Heatmaps with significance indicators. Granular Reporting: Production of individual gene-level plots for detailed inspection.Reproducibility The package includes a standardized demo dataset (simulating differential expression of 10 target genes under multiple treatment conditions) to facilitate immediate testing and verification of the workflow. v1.1.0 - Advanced qPCR Analysis Pipeline This release provides an updated and reproducible R-based pipeline for qPCR data analysis using the Livak method (2^-ΔΔCt). Key updates Added standardized dummy qPCR dataset for reproducibility. Improved automated statistical analysis using Welch's t-test. Added fold change, log2 fold change, p-values, and 95% confidence intervals. Generated publication-quality visualizations including: Global bar plots Treatment-specific volcano plots Expression heatmaps Individual gene-level plots Updated documentation and citation metadata. Licensed under the MIT License. Citation Please cite the Zenodo archived version: Noorollahi, H. (2026). Advanced qPCR Analysis Pipeline: A Reproducible R Framework for Automated Gene Expression Quantification and Visualization (v1.1.0). Zenodo. https://doi.org/10.5281/zenodo.20528637

If you use this software, please cite it as below.

Keywords

FOS: Computer and information sciences, qPCR, R Script, Livak Method, Bioinformatics, Research, Volcano Plot, Gene Expression, Real-Time PCR, Molecular Biology

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average