Correction to: Nature https://doi.org/10.1038/s41586-019-1190-7, published online 08 May 2019.

In this Letter, ‘≥’ should have been ‘≤’ in the sentence: “Intra-chromosomal reads were further split into short-range reads (≥1 kb) and long-range reads (>1 kb).” This error has been corrected online.