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Advances in equine cloning by somatic cell nuclear transfer (SCNT) technique in horses: a review

Rajesh Wakchaure, Subha Ganguly*

Abstract


Cloning a horse means using the genetic material (DNA) from a donor horse to produce a genetically identical foal. This technique involves collecting the DNA from the donor and inserting that DNA into an egg from another mare whose, DNA content has been removed, fusing donor nucleus with enucleated recipient oocytes, which then develops as an embryo, in vitro culture of embryo and lastly transfer cultured embryo into the uterus of a recipient mare. The modification of the in vitro culture conditions which can be suitable for equine oocyte activation, oocyte maturation and embryo development are the fundamental steps for a successful in vitro procedure for somatic cell nuclear transfer (SCNT) in the horse to avoid the embryo losses. In general, few studies are available in the literature on equine in vitro embryo production and it is only recently that reports have been published on completely in vitro production of equine preimplantation embryos by means of in vitro oocyte maturation The present review discusses the latest developments in the field of equine cloning technique with the employment of SCNT. The basic understanding of SCNT for in vitro culture conditions is relevant to the increased efficiency of cloning. The available genotype can be used by SCNT which can enhance the vigour of a particular infertile or low fertile animal to produce normal fertility.


Keywords


Cloning; Horse; in vitro production; SCNT

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References


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DOI: http://dx.doi.org/10.21746/ijbio.2016.12.002

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