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Updated: May 7, 2025

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Probing Cell-Type Specificity of Mutant Phenotype at Transcriptomic Level Using Mosaic Analysis with Double Markers

Giselle Cheung1, Florian M Pauler1, Simon Hippenmeyer2

  • 1Institute of Science and Technology Austria (ISTA), Klosterneuburg, Austria.

Methods in Molecular Biology (Clifton, N.J.)
|January 2, 2025
PubMed
Summary
This summary is machine-generated.

Mosaic Analysis with Double Markers (MADM) allows researchers to study gene functions in individual cells. This method combines genetic labeling with single-cell sequencing to analyze mutation effects on cell development.

Keywords:
Cell-type diversityCell-type identityDevelopmentGenetic mosaicsLineageMosaic Analysis with Double Markers (MADM)Single-cell RNA sequencing

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Area of Science:

  • Developmental biology
  • Genetics
  • Neuroscience

Background:

  • Mosaic Analysis with Double Markers (MADM) is a powerful mouse genetic technique.
  • MADM enables differential fluorescent labeling and genetic manipulation in dividing cells and their progeny.
  • It allows visualization of individual control or homozygous mutant cells within a heterozygous background.

Purpose of the Study:

  • To describe a protocol combining MADM with single-cell RNA sequencing.
  • To enable high-resolution analysis of cell-type specific phenotypes caused by genetic mutations.
  • To investigate cell-autonomous gene functions in development.

Main Methods:

  • Generation and isolation of MADM-labeled cells.
  • Application of single-cell RNA sequencing (scRNA-seq) technologies.
  • Integration of genetic manipulation with transcriptomic analysis at the single-cell level.

Main Results:

  • The described protocol facilitates the study of individual cells within complex tissues.
  • It allows for the precise analysis of transcriptomic changes in response to genetic mutations.
  • MADM combined with scRNA-seq provides unprecedented cellular resolution for developmental studies.

Conclusions:

  • This integrated approach enhances the understanding of gene function in cell development.
  • It offers a powerful tool for dissecting cell-autonomous mechanisms in neuroscience and beyond.
  • The protocol is valuable for probing genotype-phenotype relationships at single-cell resolution.