* Epigenome folding in Drosophila (Collaboration: G. Cavalli, IGH, Montpellier, France)  {{ :f1.medium.gif?nolink&300|}}
  * Dosage compensation in //C. elegans// (Collaboration: P. Meister, ICB, Univ. of Bern, CH)
  * Chromatin dynamics during spermatogenesis (Collab.: S. Khochbin, Institut A. Bonniot, Grenoble)