Correction to: Nature Published online 28 October 2020

We have been made aware of labelling issues in our article which were inadvertently introduced while reformatting the manuscript during revision. Two genotype labels in Fig. 1c (GAL4 and UAS controls) were accidentally swapped, the genotype of Extended Data Fig. 2e–e′′ was omitted from the List of Genotypes in Supplementary Information and one label in Extended Data Fig. 4g was missing the “TS” superscript. We have also further clarified the relationship between these figure panels and related data panels in Extended Data Figs. 5o,r and 6q in the legends of the latter. We apologize for any confusion this may have caused. The figure, legends and Supplementary Information have been updated in the HTML and PDF versions of the article.