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[Establishment of 43-plex SNP Typing System and Its Forensic Application]
1School of Basic Medicine, Inner Mongolia Medical University, Hohhot 010030, China.
Fa Yi Xue Za Zhi
|June 21, 2018
Summary
This study demonstrates a 43-plex SNP typing system
Area of Science:
- Forensic genetics
- Population genetics
- Molecular biology
Background:
- Short tandem repeat (STR) markers are standard in forensics.
- Single nucleotide polymorphisms (SNPs) offer complementary genetic information.
Purpose of the Study:
- To evaluate the forensic application of a 43-plex SNP typing system.
- To assess the system's utility for individual identification and paternity testing.
Main Methods:
- Typing of 43 SNP loci in 123 Han Chinese individuals using MALDI-TOF-MS.
- Analysis of forensic genetic parameters including minor allele frequencies (MAF) and diversity indices.
Main Results:
- All 43 SNP loci were in Hardy-Weinberg equilibrium.
- 39 loci exhibited MAFs greater than 0.25, with high polymorphism.
- The system demonstrated high combined power of discrimination (CPE) for trio and duo cases.
Conclusions:
- The 43-plex SNP typing system is highly polymorphic and valuable for forensic science.
- It serves as an effective supplement and verification tool for traditional STR markers.
- The system is suitable for forensic paternity testing and individual identification.
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