Volume 150, No. 2, February 2018. https://doi.org/10.1085/jgp.201711889
The author regrets that in the original version of this article, Dr. Stephen Baylor’s first name was misspelled. Additionally, for Fig. 9 B, the hours postfertilization given in the legend was incorrect. The figure and its corrected legend appear below.
All versions of this article have been corrected.