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Updated: May 21, 2026

Single-cell Gene Expression Profiling Using FACS and qPCR with Internal Standards
Published on: February 25, 2017
Comparative analysis of gene expression level by quantitative real-time PCR has limited application in objects with
Natalia V Demidenko1, Aleksey A Penin
1Department of Genetics, Biological faculty, M.V. [corrected] Lomonosov Moscow State University, Moscow, Russia. demidenkonatalia@gmail.com
Object morphology significantly impacts quantitative real-time PCR (qRT-PCR) gene expression analysis. Researchers must consider physical characteristics to ensure accurate gene expression data, especially when comparing different biological samples.
Area of Science:
- Molecular Biology
- Plant Science
- Genetics
Background:
- Quantitative real-time PCR (qRT-PCR) is a standard for gene expression analysis, valued for precision and reproducibility.
- Existing guidelines aim to enhance qRT-PCR reliability, but may overlook critical factors.
- The influence of object morphology on qRT-PCR accuracy remains an under-addressed concern.
Purpose of the Study:
- To investigate the impact of object morphology on qRT-PCR data accuracy.
- To highlight limitations in current qRT-PCR guidelines regarding sample physical characteristics.
- To provide a basis for more robust experimental design in gene expression studies.
Main Methods:
- Utilized Arabidopsis thaliana mutants with distinct floral morphologies as model systems.
- Compared qRT-PCR results with data obtained from well-established characterization techniques.
- Analyzed gene expression levels and patterns across morphologically diverse plant samples.
Main Results:
- Demonstrated that significant differences in object morphology can lead to erroneous gene expression comparisons.
- Highlighted a previously overlooked variable affecting the reliability of qRT-PCR outcomes.
- Showcased how morphological variations can skew the interpretation of gene expression data.
Conclusions:
- Object morphology is a critical, yet often neglected, factor influencing qRT-PCR results.
- Current qRT-PCR guidelines may require revision to incorporate considerations of sample physical properties.
- Accurate gene expression analysis necessitates accounting for morphological differences between compared biological entities.
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