Correction: PHF7 is a novel histone H2A E3 ligase prior to histone-to-protamine exchange during spermiogenesis.

A reader alerted the journal to duplicated images in Fig. 2C and Fig. 4D of Development (2019) 146, [dev175547][1] ([doi:10.1242/dev.175547][2]). In the top panel of Fig. 4D, the bottom part of Stage I and the top part of Stage II-III images show an overlap. This is permissible since