Wutz AInstitute of Molecular Health Sciences, Swiss Federal Institute of Technology, ETH Zürich, Schafmattstrasse 22, 8049 Zurich, Switzerland. awutz@ethz.ch
English
Spreading of dosage compensation over the X chromosome in Drosophila males requires the noncoding roX1 and roX2 RNAs. In this issue, Ilik et al. (2013) and Maenner et al. (2013) show that these RNAs contain discrete binding sites that are remodeled during assembly of the dosage compensation complex.