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Updated: Jun 26, 2026

One Mouse, Two Cultures: Isolation and Culture of Adult Neural Stem Cells from the Two Neurogenic Zones of Individual Mice
Published on: February 25, 2014
A single origin of the central nervous system?
1Department of Biology, University College London, Darwin Building, Gower Street, London WC1E 6BT, UK. m.telford@ucl.ac.uk
Gene expression patterns in chordate and annelid embryos show remarkable similarity, suggesting ancient nervous system development mechanisms inherited from a common ancestor. This indicates the central nervous system is an ancient animal characteristic.
Area of Science:
- Developmental Biology
- Comparative Genomics
- Evolutionary Biology
Background:
- Investigating gene expression in chordate and annelid embryos.
- Analyzing genes involved in nervous system patterning.
Discussion:
- Comparing gene expression profiles and functional roles between phyla.
- Evaluating the conservation of developmental mechanisms.
Key Insights:
- Extraordinary conservation of nervous system patterning genes.
- Evidence for inheritance from the bilaterian common ancestor.
- Central nervous system as an ancient animal trait.
Outlook:
- Implications for understanding early animal evolution.
- Potential for further comparative studies across diverse taxa.
- Reconstructing ancestral developmental pathways.
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