Clonal Analysis of Planarian Stem Cells by Subtotal Irradiation and Single-Cell Transplantation

  • Irving E. Wang
  • Daniel E. Wagner
  • Peter W. ReddienEmail author
Part of the Methods in Molecular Biology book series (MIMB, volume 1774)


Stem cells, which both self-renew and produce differentiated progeny, represent fundamental biological units for the development, growth, maintenance, and regeneration of adult tissues. Characterization of stem cell lineage potential can be accomplished with clonal assays that interrogate stem cell output at the single-cell level. Here we present two methods for clonal analysis of individual proliferative cells (neoblasts) in the planarian Schmidtea mediterranea. The first method utilizes “subtotal” gamma irradiation to study rare surviving neoblasts and their clonal descendants in their native environment. The second method utilizes a fluorescent-activated cell sorting (FACS) strategy to obtain neoblast-enriched cell fractions, followed by single-cell transplantation into lethally irradiated hosts. Together, these methods provide a framework for generation and analysis of stem cell-derived clones in planarians.

Key words

FACS Irradiation Neoblast Single cell transplantation Clonal analysis 


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Irving E. Wang
    • 1
  • Daniel E. Wagner
    • 1
  • Peter W. Reddien
    • 1
    Email author
  1. 1.Howard Hughes Medical Institute, Whitehead Institute for Biomedical ResearchMassachusetts Institute of TechnologyCambridgeUSA

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