Before revision:  On the contrary , GBM-targeted perturbations destabilise the epigenetic landscape . Strikingly, we show that GBM can explain the full distribution of Polycomb marks in a whole Drosophila chromosome.
After revision:  In contrast , GBM-targeted perturbations destabilise the epigenetic landscape . Strikingly, we show that GBM can explain the full distribution of Polycomb marks in a whole Drosophila chromosome.