Ultrastructure of bovine sperm chromatin

• Published in: Microscopy research and technique Vol. 78; no. 12; pp. 1117 - 1120
• Main Authors: Filho, Romualdo Morandi, Beletti, Marcelo Emilio, de Oliveira, Fabio
• Format: Journal Article
• Language: English
• Published: United States Blackwell Publishing Ltd 01.12.2015; Wiley Subscription Services, Inc
• Subjects: Animals; Cattle; Chromatin - ultrastructure; Deoxyribonucleic acid; fertility; Genetics; Male; Mammals; Microscopy; Microscopy, Electron, Transmission; Models, Biological; nuclear compaction; Polymers; protamine; Semen; Sodium dodecyl sulfate; Spermatozoa - ultrastructure; spermiogenesis; Transmission electron microscopy; nuclear compaction; protamine; spermiogenesis; fertility

ABSTRACT Mammalian semen chromatin comprises DNA, protamine, and, at lower levels, other proteins. This constitution confers intense compaction to the chromatin, helping to protect the DNA and causing the head of the sperm to be very small, facilitating the safe transport of its genetic contents. It...