There was an error published in Development (2019) 146, dev172031 (doi:10.1242/dev.172031).

In Table S3 in the supplementary material, the genotype for strain VT3903 was incorrect.

Corrected:

maEx267 [rol-6(su1006); unc-119+, plet-7::let-7 locus without mature let-7 sequence]; let-7(ma388) X; mir-48(n4097), maIs105 V

Original:

maEx264 [unc-119+; plet-7::let-7 locus without mature let-7]; let-7(ma388) X; mir-48(n4097), maIs105 V

The online supplementary PDF has been been updated.

The authors apologise for this error and any inconvenience it may have caused.