Like humans, corn not only has "fingerprints," but the "fingerprints" of different varieties will never be the same. According to this characteristic, China's agricultural experts have successfully mastered international cutting-edge technologies such as authenticating the authenticity of corn seeds and judging the purity of corn seeds. A scientific research plan announced by the Beijing Academy of Agriculture and Forestry Sciences on the 11th shows that China's corn standard DNA "fingerprint database" has entered the preparatory stage. According to Zhao Jiuran, director of the institute's corn research center, corn "fingerprint" is determined by DNA, and the use of different "fingerprints" of corn varieties also has the same characteristics. It can quickly and easily complete corn seed identification, registration and protection of variety rights, quality control, and The judiciary appraisal of variety infringement is also of great significance for clarifying the genetic relationship of corn germplasm in China, the division of heterotic groups, the innovation of germplasm and the breeding of new varieties. In recent years, the Beijing Academy of Agricultural Sciences successively provided corn seed purity testing and authenticity identification for more than 5,000 times for breeding research, seed production, management, management, and law enforcement departments. In addition, the forensic identification of more than 40 infringement cases of maize varieties is also based on the "fingerprint" of corn. This shows that China has reached an international advanced level in the application of corn "fingerprint" technology. Zhao Jiuran said that using a variety of rapid DNA extraction methods, the Beijing Academy of Agricultural Sciences has now created “fingerprints†for more than 200 varieties of corn, and the time is ripe for the preparation of the National Maize Standard DNA “Fingerprint Libraryâ€. An important part of this scientific research plan is to strive to make Chinese standards rise to international standards by regulating the "fingerprint" standard of corn.
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