Construction and validation of parentage testing for thoroughbred horses by 53 single nucleotide polymorphisms.

The research article is based on the development and implementation of a new system, known as SNP 53 JPN System, to establish parentage verification in thoroughbred horses through single nucleotide polymorphisms (SNPs). The conclusion drawn from the study suggests that the SNP 53 JPN System is a reliable method for routine parentage testing of thoroughbreds.

Research Objective

• The main objective of this study was to develop and validate a new system for parentage verification in thoroughbred horses. The researchers aimed to use polymorphic single nucleotide polymorphisms (SNPs) to create an efficient system called the SNP 53 JPN System.

Methodology and Findings

• The researchers tested the SNP 53 JPN System using 53 highly polymorphic SNPs. These were amplified and evaluated with two multiplex assays to ascertain their efficiency in determining parentage.
• To further establish the applicability of the SNP 53 JPN System, it was employed on 95 unrelated thoroughbred horses. The system showcased a good resolution with the exclusion probability (PE01) for each SNP ranging from 11.5 to 23.0%, providing a total PE01 value of 99.996%.
• The researchers found that eight of the 53 SNPs could be used to exclude a pseudo-parent and sib combination detected through the International Society for Animal Genetics (ISAG) horse comparison test conducted in 2006. The efficiency level was comparable to the parentage testing systems that used short tandem repeats (STRs).
• These findings point out that the SNP 53 JPN System was rendered robust, providing sufficient and accurate information for routine parentage testing of thoroughbreds.

Conclusion

• The conclusion of the research hinged on the utility of the SNP 53 JPN System in conducting routine parentage testing for thoroughbreds. The study confirmed that the SNP 53 JPN System was competent in providing reliable and efficient results.