Correction to: Nature Plants https://doi.org/10.1038/s41477-020-00757-1, published online 31 August 2020.

In the version of this Letter originally published, the y-axis label in Fig. 4g “H3K27me3 (log2[adjusted P])” was incorrect; it should have read “H3K27me3 (log2[adjusted rpkm])”. All versions of the Letter have been amended.