1. Neurosciences and Cellular and Structural Biology Division, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
2. Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, Durham, NC, USA
3. Department of Medicine, Chobanian & Avedisian School of Medicine, Boston University, Boston, MA, USA
4. Howard Hughes Medical Institute—Janelia Research Campus, Ashburn, VA, USA
5. Department of Biochemistry and Molecular Biology, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, USA
6. School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, OR, USA
7. Departments of Anthropology and Biological Sciences, University of Cincinnati, Cincinnati, OH, USA