Performance Verification of SeqType® P52 Human Ancestry Identification SNP Detection Kit

Area of Science:

• Population Genetics
• Forensic Science
• Genomics

Background:

• Accurate human ancestry identification is crucial for forensic investigations.
• High-throughput sequencing platforms offer advanced capabilities for genetic analysis.
• Understanding ethnic group genetic diversity aids in population studies.

Purpose of the Study:

• To evaluate the discrimination efficiency of the SeqType® P52 Human Ancestry Identification SNP Detection Kit.
• To assess the kit's performance across five distinct Chinese ethnic groups.
• To establish a composite detection system for ancestry analysis.

Main Methods:

• Utilized the SeqType® P52 Human Ancestry Identification SNP Detection Kit on a high-throughput sequencing platform.
• Analyzed 350 DNA samples from Han, Tibetan, Mongolian, Uygur, and Yi populations.
• Performed population cluster analysis using Structure 2.3.4 software and Principal Component Analysis (PCA).

Main Results:

• Achieved an effective sequencing depth of ≥720× per site per sample with a 96% average report rate.
• Identified distinct ancestral components in Han, Tibetan, and Uygur populations.
• Observed varying degrees of ancestral component similarity among Tibetan, Mongolian, Uygur, Yi, and Han populations.

Conclusions:

• A composite system using 52 ancestry-informative SNPs effectively analyzes ancestry in Han, Tibetan, and Uygur populations.
• Discrimination among Han, Mongolian, and Yi populations requires further enhancement.
• The SeqType® P52 kit shows potential for inferring ancestral origins in forensic DNA analysis.