A new set of markers for human identification based on 32 polymorphic Alu insertions

Area of Science:

• Forensic Genetics
• Human Molecular Identification
• Population Genetics

Background:

• Current human genetic identification systems (STRs, SNPs) are vital for forensics, kinship, and disaster victim analysis.
• Existing methods have limitations in cost, ease of use, or throughput.
• Novel genetic markers are needed to enhance human identification capabilities.

Purpose of the Study:

• To develop and characterize a new set of 32 molecular genetic markers for human identification.
• To evaluate the utility of polymorphic retroelement insertions as a basis for these markers.
• To assess the cost-effectiveness and ease of use compared to established methods.

Main Methods:

• Development of 32 novel molecular genetic markers based on polymorphic retroelement insertions.
• Determination of allele frequencies in 90 unrelated individuals from four distinct Russian Federation populations.
• Calculation of forensic statistical parameters: mean match probability and probability of paternal exclusion.

Main Results:

• A new system of 32 polymorphic retroelement insertion markers for human genetic identification was successfully developed.
• High discriminatory power was demonstrated, with a mean match probability of 5.53 x 10(-14) and paternal exclusion probability of 99.784%.
• The developed system is cost-effective, user-friendly, and amenable to automated, high-throughput analysis using fluorescence-based methods.

Conclusions:

• Polymorphic retroelement insertions represent a powerful and efficient basis for novel human genetic identification systems.
• The developed marker set provides a significant advancement in forensic genetics, offering high accuracy and practical advantages.
• This new system is suitable for diverse applications including criminal investigations, paternity testing, and mass disaster identification.