Objective: To detect low copy number of DNA samples by using a newly launched commercial miniSTR detection kit (MiniFiler) in forensic practice.
Methods: Low concentration and/or challenged forensic DNA samples were analyzed according to protocols provided by the manufacturer (Applied Biosystems, Foster City, USA).
Results: DNA samples as low as 10 pg could be amplified by MiniFiler kit, and the optimal DNA quantity was 40 pg or above.
Conclusion: MiniFiler kit can be used for analysis of low copy number STR.