Automated screening for mutants affecting dopaminergic-neuron specification in C. elegans

Nat Methods. 2008 Oct;5(10):869-72. doi: 10.1038/nmeth.1250. Epub 2008 Aug 31.


We describe an automated method to isolate mutant Caenorhabditis elegans that do not appropriately execute cellular differentiation programs. We used a fluorescence-activated sorting mechanism implemented in the COPAS Biosort machine to isolate mutants with subtle alterations in the cellular specificity of GFP expression. This methodology is considerably more efficient than comparable manual screens and enabled us to isolate mutants in which dopamine neurons do not differentiate appropriately.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Caenorhabditis elegans / genetics
  • Caenorhabditis elegans / metabolism*
  • Dopamine / metabolism*
  • Flow Cytometry
  • Fluorescence
  • Green Fluorescent Proteins / genetics
  • Mutation*
  • Neurons / metabolism*


  • Green Fluorescent Proteins
  • Dopamine