Correction to: Nature Genetics https://doi.org/10.1038/s41588-018-0302-x, published online 31 December 2018.

In the version of this article initially published, in Fig. 5a, the data in the right column of ‘DAAM2 gRNA1’ were incorrectly plotted as circles indicating ‘untreated’ rather than as squares indicating ‘treated’. The error has been corrected in the HTML and PDF versions of the article.