利用AutoMate ExpressTM系统提取陈旧性骨骼DNA

摘要

目的 建立利用AutoMate ExpressTM系统提取陈旧性骨骼DNA的方法. 方法 将骨骼用冷冻研磨机研磨成骨粉,经AutoMate Express俐系统提取后,用Identifiler(R) Plus、MiniFilerTM试剂盒扩增分型. 结果 10例保存在不同环境中、死亡时间在10～20年的骨骼样本利用AutoMate ExpressTM系统3h内完成DNA提取,有8例获得完整STR分型.结论 AutoMate ExpressTM系统能快速、高效地提取陈旧性骨骼DNA,可应用于法医实际案件检验.%Objective To establish a method for extracting DNA from old bones by AutoMate ExpressTM system.Methods Bones were grinded into powder by freeze-mill.After extraction by AutoMate ExpressTM,DNA were amplified and genotyped by Identifiler(R) Plus and MinFilerTM kits.Results DNA were extracted from 10 old bone samples,which kept in different environments with the postmortem interval from 10 to 20 years,in 3 hours by AutoMate ExpressTM system.Complete STR typing results were obtained from 8 samples.Conclusion AutoMate ExpressTM system can quickly and efficiently extract DNA from old bones,which can be applied in forensic practice.