People s Liberation Army News Special correspondent Zhuang Yingna and reporter Shao Longfei reported: Recently, the ceremony of the Chinese People s Volunteers martyrs confession was held in the cemetery of the martyrs in the Shenyang Anti-US Aid Korea. This identification of the martyrs is the first time that China has applied DNA technology to determine the identity of the remains of an unknown volunteer. The first DNA database of martyrs in China has been established in the Military Medical Research Institute of the Academy of Military Sciences.
The reporter learned that it was Wang Shengqi s team at the Military Medical Research Institute of the Academy of Military Sciences who undertook the task of DNA identification and comparison of the remains of volunteer martyrs. The team broke through the international problems of extracting severely degraded trace DNA from complex remains, and identifying complex relationships with kinships. It has completed the analysis of the DNA of 494 volunteer martyrs remains, and for the first time in China has established the remains of volunteer martyrs with 3 types of genetic markers The DNA database of relatives provides reliable technical and data support for identification and comparison.
Researcher Wang Shengqi introduced that everyone has their own unique DNA sequence. Therefore, DNA identification is considered to be the gold standard for identity verification. Of all the samples available, the extraction of DNA from bone samples is the most difficult, especially the extraction of DNA from stale remains in a war environment. The conventional extraction technology is time-consuming, costly and has a low success rate, which cannot meet the requirements of subsequent DNA analysis and identification. After 10 months of continuous fighting, the team finally established a fast and efficient new method for DNA extraction, which greatly improved the success rate of DNA detection.
In addition, the identification of complex kinship is also a challenge. Wang Shengqi said that most of the volunteer martyrs died very young and had no offspring. The sacrifice time is nearly 70 years ago. Parents and siblings are very few now, making identification difficult . The team took a different approach and conducted in-depth research on the identification of distant relatives and complex relationships. Using next-generation sequencing technology and multi-type and multi-site genetic marker comparison methods, it has accumulated a sufficient data base for the identification of martyrs.
Make the unknown martyrs famous. Wang Shengqi said that the identification of volunteer martyrs remains a heavy responsibility and a glorious mission. He will do his best to find loved ones for more volunteer martyrs.