Researchers from the Institute of Medical Genetics of the Tomsk National Research Medical Center of the Russian Academy of Sciences (TNIMTs RAN), together with the company Gordiz, have developed a DNA diagnostics technology that makes it possible to determine the territorial origin of an unknown individual. The new method is based on the analysis of the Y chromosome, which is passed down through the male line.
In most countries, including Russia, the genetic system CODIS (Combined DNA Index System), which includes a set of 20 highly polymorphic regions of the genome, is used to solve crimes. However, these markers make it possible to establish matches only with suspects whose information has been entered into the database.
Vadim Stepanov, Director of TNIMTs RAN, noted that the human genome and a population's gene pool stem from the common history of the species and its migration. Every man inherits his Y chromosome from his ancestors, which makes it possible to link it to a specific geographic area and sometimes find matches even down to the level of a surname or clan lineage.
Researchers from TNITs RAN and the company Gordiz selected 37 points in the genome that make it possible to determine the ethnoterritorial origin of men.
The domestic technology for determining population affiliation by Y chromosome (SepOr) was tested on samples from the Investigative Committee. The scientists conducted about 150 examinations, which showed an effectiveness of 93-95%.
The scientists believe that the new development could help solve 20% of serious crimes. However, the method works only for searching for men.
Earlier, www1.ru reported that AI from NtechLab helps solve every tenth crime in Yamal.