Spermatidogenesis
Cross section of the epithelium of a seminiferous tubule showing various stages of spermatocyte development
.svg.png)
Scheme showing analogies in the process of maturation of the ovum and the development of the spermatids (young spermatozoa).
Spermatidogenesis is the creation of spermatids from secondary spermatocytes during spermatogenesis.
Secondary spermatocytes produced earlier rapidly enter meiosis II and divide to produce haploid spermatids.
The brevity of this stage means that secondary spermatocytes are rarely seen in histological preparations.
In 2016 scientists at Nanjing Medical University claimed they had produced cells resembling mouse spermatids artificially from stem cells. They injected these spermatids into mouse eggs and produced pups.[1]
References
- ↑ Cyranoski, David (25 February 2016). "Researchers claim to have made artificial mouse sperm in a dish". Nature. doi:10.1038/nature.2016.19453. Retrieved 4 March 2016.
This article is issued from Wikipedia - version of the 3/4/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.