The objective of this study is to research the genetic diversity of the ‘ Zuijinxiang ’ grape and its mutant breeding F1 plants, we screened the excellent mutant plants with potential breeding value. 50 mutated single plants obtained from 137Cs-γ irradiated ‘Zuijinxiang’ grape seeds were used as research objects, and SCoT molecular marker technology was used for genetic diversity and variation analysis, and clustering research was carried out. The results showed that: (1) 36 SCoT primers produced abundant polymorphisms, and the amplification results showed obvious bright bands, and the amplification efficiency and polymorphism rate were 100%. (2) A total of 221 bands were amplified by 36 primers, of which 175 were rich in polymorphism, the average polymorphic percentage was 80.3%, and the average genetic similarity coefficient was 0.916. (3) The number of observed alleles (Na) ranged from 4 to 8, with an average of 6.1389; the number of effective alleles (Ne) ranged from 1.2772 to 5.6322 with an average of 3.5968; the desired heterozygosity (He) The range is from 0.2192 to 0.8344, the average is 0.6965; the observed heterozygosity (Ho) ranges from 0.1656 to 0.7808 with an average of 0.3035; the Nei’s gene diversity index (H) ranges from 0.2170 to 0.8224 with an average of 0.6863; Shannon-Wiener The index (I) ranges from 0.5186 to 1.8597 with an average of 1.4517. (4) UPGMA clustering of 51 materials showed that the test materials could be divided into three groups when the genetic distance was 0.856. The experiment shows that the genetic diversity of the ‘Zuijinxiang’ radiation variation germplasm resources is rich. In addition, SCoT molecular marker technology can distinguish the materials with close genetic distance, and can be used for early identification techniques of grape mutant materials. This study provides a theoretical basis for the development of excellent mutant germplasm of ‘Zuijinxiang’ grapes.

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This paper aims to be based on system theory to establish structure model, and closely integrated with the actual situation in the frontier ethnic areas. Through the analysis of the characteristics of structure model, predisposing factors and existing problems of group events in the frontier ethnic areas, then some targeted measures will be proposed. This not only has important theoretical significance but also has certain practical value to maintain the harmony and stability of the frontier ethnic areas.

Practical teaching is a kind of teaching conducted according to the requirements of simulated actual setting, which covers the basic attributes of modern education and practical requirements of emergency work, and reflects the characteristics of the times of talent training in professional colleges. In order to scientifically carry out practical teaching and cultivate emergency professionals required by the society, professional colleges need to systematically plan all teaching links by strengthening practical awareness, thus laying a solid foundation for emergency management training. This is not only of great theoretical significance, but also of certain practical value to strengthen the practical teaching and improve the talent training mechanism.

Under the strategic background to strengthen the police with science and technology, intelligence policing is a new model formed by public security organs based on the integration, fusion and application of big data, which provides system support and technical guarantee for the current social security management work. This article focuses on social security management in the context of intelligence policing, and systematically analyzes the specific practice and inherent characteristics of the construction of intelligence policing, then to build a scientific and reasonable social safety management mechanism. This not only has important theoretical significance, but also has certain practical value to comprehensively improve police efficiency and enhance social governance capabilities.

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As the integration of Beijing-Tianjin-Hebei becomes a national strategy, the integration process of Beijing-Tianjin-Hebei continues to deepen. The abundant human resources in the region provide a strong guarantee for coordinated development and also support an important engine for coordinated development. Starting from the realistic background of the coordinated development of human resources in the region, this paper systematically analyzes the theoretical basis of coordinated development, and puts forward scientific and reasonable policy recommendations from the perspective of theoretical models. This not only has important theoretical significance, but also has a little practical value for improving the level of human resources coordination and fully implementing the integration strategy.