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Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are also easy to maintain and breed in the laboratory, and hence, many inbred strains are now available for research. Studies on mice have contributed immeasurably to our understanding of cancer biology.
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Related Experiment Video

Updated: May 15, 2026

Transgenic Rodent Assay for Quantifying Male Germ Cell Mutant Frequency
14:45

Transgenic Rodent Assay for Quantifying Male Germ Cell Mutant Frequency

Published on: August 6, 2014

Use of somatic mutations to quantify random contributions to mouse development.

Wenyu Zhou1, Yunbing Tan, Donovan J Anderson

  • 1Department of Pathology, University of Washington, Box 358056, Seattle, WA 98195, USA.

BMC Genomics
|January 19, 2013
PubMed
Summary

Mouse development shows conserved cell lineage patterns between siblings. Phylogenetic fate mapping reveals mixed progenitor pools for muscle/fat but restricted sources for brain vasculature, highlighting stochastic and deterministic developmental events.

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Area of Science:

  • Developmental biology
  • Genetics
  • Mammalian development

Background:

  • C. elegans cell fate maps offer a developmental milestone due to invariant lineage.
  • Mammalian development is probabilistic, with variations even in genetically identical individuals.
  • A single, defined cell fate map for all mammalian individuals is not feasible.

Purpose of the Study:

  • To investigate conserved cell lineage patterns in mice using phylogenetic fate mapping.
  • To compare cell fate maps between sibling mice to understand developmental conservation.

Main Methods:

  • Phylogenetic fate mapping using somatic mutations to deduce lineage relationships.
  • Analysis of genetic distance for lineage reconstruction.
  • Cataloging genomic mutations at polyguanine (polyG) tracts in clonally isolated cells from littermates.

Main Results:

  • Muscle and fat tissues originate from a mixed progenitor cell pool in the germ layer.
  • Vascular endothelium in the brain derives from a smaller, more restricted progenitor cell source.
  • Tissue primordia formation involves established lateral compartments with limited cell migration.

Conclusions:

  • Mouse development combines stochastic and deterministic events.
  • Insights into how chance influences normal development and potential birth defects.
  • Demonstration of conserved, yet variable, developmental pathways in mammals.