Our country has built the first DNA database of volunteer martyrs

the eve of this year's Martyrs' Day, the Ministry of Veterans Affairs held a ceremony in Shenyang to recognize the martyrs of the anti-American and Democratic People's Republic of Korea Chinese This is the first time that our country has identified the remains of unknown volunteer martyrs through DNA technology. Reporters learned on the 13th, to undertake this task is
military medical research institute Wang Shengqi team. They broke through international challenges such as the extraction of severely degraded trace DNA from obsolete remains and the identification of complex kinship, and for the first time established a database of the remains and DNA of relatives of volunteer martyrs with three types of genetic markers, providing reliable technology and data support for the identification of relatives.
, DNA identification is considered the "gold standard" for identification. Of all the samples available, bone DNA extraction is the most difficult, while DNA extraction of old remains in war environments is difficult. Most of the remains of martyrs in The Korean Volunteer Army have experienced long periods of buried sun and microbial invasion, and the successful extraction of effective DNA is one of the greatest challenges in the identification of human remains.
Wang Shengqi researcher, conventional extraction technology is time-consuming, costly and has a low success rate, which can not meet the requirements of subsequent DNA analysis and identification. The team built a new method of rapid and efficient DNA extraction. The application of this method greatly improves the success rate of DNA testing. Identification is another challenge facing the team. The vast majority of volunteer martyrs died young, without offspring, nearly 70 years after the sacrifice, with very few parents and siblings still alive, and identification is essentially using distant RELATIVE DNA for matching, another international challenge. The team conducted in-depth research on the identification of distant relatives, used a new generation of sequencing technology, established a multi-type, multi-point genetic marker comparation method, for the identification of martyrs has laid a full data base.
it is understood that the Military Medical Research Institute was established in 1951, the beginning of the establishment is to solve the anti-American assistance to the DPRK battlefield security problems as the main task. Up to now, Wang Shengqi's team has completed DNA analysis of the remains of 494 volunteer martyrs.