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Related Experiment Video

Updated: May 31, 2026

Lineage Tracing and Clonal Analysis in Developing Cerebral Cortex Using Mosaic Analysis with Double Markers (MADM)
09:25

Lineage Tracing and Clonal Analysis in Developing Cerebral Cortex Using Mosaic Analysis with Double Markers (MADM)

Published on: May 8, 2020

Tracing cell lineages in the developing brain: Insights from mosaic analysis and clone-resolved transcriptomics.

Irene Varela-Martínez1, Fabrizia Pipicelli1, Simon Hippenmeyer1

  • 1Institute of Science and Technology Austria (ISTA), Am Campus 1, Klosterneuburg 3400, Austria.

Current Opinion in Genetics & Development
|May 29, 2026
PubMed
Summary

New techniques reveal how radial glial progenitors (RGPs) generate diverse brain cells. This research uncovers surprising lineage relationships and species-specific differences in brain development and evolution.

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Last Updated: May 31, 2026

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Genomics

Background:

  • The developing cerebral cortex contains diverse neuron and glial cell types originating from radial glial progenitors (RGPs).
  • Understanding the precise lineage hierarchies that link individual progenitors to specific cell subtypes is crucial but remains challenging.
  • Temporal and spatial molecular cues guide RGP differentiation, yet detailed lineage maps are incomplete.

Purpose of the Study:

  • To synthesize recent advances in clone-resolved transcriptomics for high-resolution lineage tracing in the developing brain.
  • To uncover novel lineage relationships among progenitors and cell types in the cerebral cortex.
  • To investigate species-specific differences in developmental programs and their impact on cortical evolution.

Main Methods:

  • Utilizing clone-resolved transcriptomics, which integrates molecular barcoding and single-cell RNA sequencing.
  • Applying these methods for high-resolution lineage tracing at the single-clone and single-cell level.
  • Comparing lineage data across different species and developmental models.

Main Results:

  • Identification of unexpected lineage relationships between progenitor cells and their progeny in the developing brain.
  • Detailed mapping of cell-type diversity generation through progenitor differentiation.
  • Uncovering significant species-specific variations in developmental programs and clonal architectures.
  • Linking evolutionary changes in clonal structure to lineage diversification.

Conclusions:

  • Clone-resolved transcriptomics provides unprecedented resolution for studying developmental lineages.
  • This approach reveals complex and previously unrecognized progenitor-cell relationships in the cerebral cortex.
  • Developmental programs and lineage diversification exhibit significant species-specific differences, offering insights into cortical evolution.