Novel Strategies for the Identification of Clock Genes Neurospora With Insertional Mutagenesis

  • Kruno Sveric
  • Moyra Mason
  • Till Roenneberg
  • Martha Merrow
Part of the Methods in Molecular Biology™ book series (MIMB, volume 362)


As the molecular mechanism of circadian clocks has reached high complexity, the fungal model system, Neurospora crassa, is increasingly important for clock research. It offers the possibility of extensive biochemical experimentation and thorough description of circadian properties. Realization of the full potential is dependent on efficient, high-throughput methods. We have combined several protocols to develop abundant and inexpensive production of mutants, and subsequent identification of the affected gene. We applied a novel screening protocol and, after screening several hundred mutants, identified a known clock gene, frequency. Furthermore, the methods described here can easily be adapted to various insertional constructs (e.g., those with alternative selection markers or that facilitate overexpression) or combined with strains carrying clock-regulated reporter genes.

Key Words

Neurospora crassa fungi circadian mutagenesis clock entrainment 


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Copyright information

© Humana Press Inc. 2007

Authors and Affiliations

  • Kruno Sveric
    • 1
  • Moyra Mason
    • 2
  • Till Roenneberg
    • 1
  • Martha Merrow
    • 3
  1. 1.Institute for Medical PsychologyUniversity of MunichMunichGermany
  2. 2.Department of BiologyUniversity of PaduaPaduaItaly
  3. 3.Department of ChronobiologyRijksuniversiteitGroningenThe Netherlands

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