Forensic characteristics and genetic variations of Han Chinese population in Shenzhen revealed by 23 autosomal STRs.

The 23 autosomal STR loci show high polymorphism and a cumulative power of exclusion of 0.9999957 in the Shenzhen Han population.

• Why it matters: Understanding the genetic variation of STRs in the Shenzhen Han population is crucial for forensic identification and paternity testing, filling a gap in population-specific data.
• What they did: Genotyping 1,226 unrelated individuals using the Huaxia Platinum PCR kit, assessing forensic parameters, linkage disequilibrium, Hardy-Weinberg equilibrium, and mutation patterns across 23 loci.
• The result: All loci demonstrated high polymorphism, with a mutation rate of 0.085%, and the data confirmed the loci's utility for forensic and population genetic applications in this group.