Correction to: Nature https://doi.org/10.1038/s41586-019-1897-5 Published online 8 January 2020

In Fig. 4j of this Article, the label on the bottom panel should have been ‘Rreb1−/− ESC’ instead of ‘Rreb1+/+ ESC’. This error has been corrected online.

Change history: An Amendment to this paper has been published and can be accessed via a link at the top of the paper.