To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 4. Related to Fig. 7B Movie of a P32 control round spermatid showing small, spherical mitochondria. Scale bar, 500 nm. Fis1 ablation in the male germline disrupts mitochondrial morphology and mitophagy, and arrests spermatid maturation Grigor Varuzhanyan, Mark S. Ladinsky, Shun-ichi Yamashita, Manabu Abe, Kenji Sakimura, Tomotake Kanki, and David C. Chan Development 2021. 148:None-None; doi: 10.1242/dev.199686 Download Original Video