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Animal Reproduction and Physiology
Asian-Australasian Journal of Animal Sciences 2007;20(11): 1689-1693.
DOI: https://doi.org/10.5713/ajas.2007.1689    Published online October 30, 2007.
Sexing Goat Embryos by PCR Amplification of X- and Y- chromosome Specific Sequence of the Amelogenin Gene
A-qin Chen, Zi-rong Xu, Song-dong Yu*
Correspondence:  Song-dong Yu,
The objective of this study was to develop a simplified, efficient, and accurate protocol for sexing goat embryos. Based on the amelogenin gene located on the conservation region of X- and Y- chromosomes, a pair of primers was utilized and the system of PCR was established to amplify a 262 bp fragment from the X- chromosome in female goats, and a 262 bp fragment from X- chromosome and 202 bp fragment from the Y- chromosome in male goats, respectively. The accuracy and specificity of the primers were assessed using DNA template extracted from goat whole blood sample of known sex. 100% (10/10) concordance was obtained by using the PCR assay. Fifty-one biopsied embryos were transferred into 25 recipient goats on the same day that the embryos were collected and sex of the kid was confirmed after parturition. Eighteen kids of predicted sex were born. The biopsied samples from 51 goat embryos were amplified with 100% efficiency and 94.7% accuracy. In conclusion, our results indicated that PCR sexing protocols based on the amelogenin gene is highly reliable and suitable for sex determination of goats.
Keywords: Goat Embryos; Amelogenin Gene; Sexing; PCR
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