Biomaterial Database

Horse Somatic Cell Nuclear Transfer Using Zona Pellucida-Enclosed and Zona-Free Oocytes. 2023

Daniel Salamone, and Marc Maserati

Universidad de Buenos Aires, Facultad de Agronomía, Departamento de Producción Animal, Buenos Aires, Laboratorio Biotecnología Animal (LabBA), Buenos Aires, Argentina. salamone@agro.uba.ar.

Horse cloning by somatic cell nuclear transfer (SCNT) is an attractive scientific and commercial endeavor. Moreover, SCNT allows generating genetically identical animals from elite, aged, castrated, or deceased equine donors. Several variations in the horse SCNT method have been described, which may be useful for specific applications. This chapter describes a detailed protocol for horse cloning, thus including SCNT protocols using zona pellucida (ZP)-enclosed or ZP-free oocytes for enucleation. These SCNT protocols are under routine use for commercial equine cloning.

UI	MeSH Term	Description	Entries
D009865	Oocytes	Female germ cells derived from OOGONIA and termed OOCYTES when they enter MEIOSIS. The primary oocytes begin meiosis but are arrested at the diplotene state until OVULATION at PUBERTY to give rise to haploid secondary oocytes or ova (OVUM).	Ovocytes,Oocyte,Ovocyte
D006736	Horses	Large, hoofed mammals of the family EQUIDAE. Horses are active day and night with most of the day spent seeking and consuming food. Feeding peaks occur in the early morning and late afternoon, and there are several daily periods of rest.	Equus caballus,Equus przewalskii,Horse, Domestic,Domestic Horse,Domestic Horses,Horse,Horses, Domestic
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D015044	Zona Pellucida	A tough transparent membrane surrounding the OVUM. It is penetrated by the sperm during FERTILIZATION.
D053652	Nuclear Transfer Techniques	Methods of implanting a CELL NUCLEUS from a donor cell into an enucleated acceptor cell.	Nuclear Transplantation,Somatic Cell Nuclear Transfer Technique,Nuclear Transfer Technique,Transplantation, Nuclear
D019976	Cloning, Organism	The formation of one or more genetically identical organisms derived by vegetative reproduction from a single cell. The source nuclear material can be embryo-derived, fetus-derived, or taken from an adult somatic cell.	Cloning, Embryo,Cloning, Human,Embryo Cloning,Human Cloning,Cloning,Clonings, Embryo,Clonings, Human,Clonings, Organism,Embryo Clonings,Human Clonings,Organism Cloning,Organism Clonings