Factors of Regional Processes Destabilization in the Southern Russia

Introduction. The article examines traditional and recent factors that affect the situation in the geopolitically significant southern Russian region. The reasons for the actualization of socio-political and ethno-confessional conflicts are considered as factors of possible regional destabilization. Methods and materials. Conflictological diagnostics of the regional tension dynamics, as well as the nature and features of situational and long-term risks to regional security and socio-political stability in the South of Russia are based on factor analysis of Rostov region, Krasnodar Krai, and the Republic of Adygea materials. Analysis. By analyzing the statistics, the authors has revealed the presence of such negative processes in these regions as a decrease in the standard of living, a sharp increase in the unemployment rate, an increase in corruption and crime rates, population decrease, which is provoked by the COVID-19 pandemic – the newest factor of regional tension. Results. It is concluded that socio-economic problems against the background of a pandemic crisis may adversely affect the nature of interethnic and interfaith relations. Competition in the labor market, deterioration of the criminal situation, and uncontrolled migration can be considered as factors of conflict. According to the results of the study, it was found that the destabilization factors of the Rostov region regional situation have an endogenous character: demographic (population decrease), economic (deterioration in the socio-economic situation of the population), growth of protest activity and destructive content in the media. For Krasnodar Krai and the Republic of Adygea, exogenous factors of regional tension remain relevant: there is a high level of external migration for the region. Authors’ contribution.The contribution of M.V. Tarasova in writing the article is to form the research logic, develop methodology and tools, and analyze statistical information in Rostov region. The analysis of the regional situation in Krasnodar Krai and Rostov region was carried out by I.V. Yurchenko, and M.V. Dontsova

Chromosomal-level assembly of the Asian Seabass genome using long sequence reads and multi-layered scaffolding

We report here the ~670 Mb genome assembly of the Asian seabass (Lates calcarifer), a tropical marine teleost. We used long-read sequencing augmented by transcriptomics, optical and genetic mapping along with shared synteny from closely related fish species to derive a chromosome-level assembly with a contig N50 size over 1 Mb and scaffold N50 size over 25 Mb that span ~90% of the genome. The population structure of L. calcarifer species complex was analyzed by re-sequencing 61 individuals representing various regions across the species' native range. SNP analyses identified high levels of genetic diversity and confirmed earlier indications of a population stratification comprising three clades with signs of admixture apparent in the South-East Asian population. The quality of the Asian seabass genome assembly far exceeds that of any other fish species, and will serve as a new standard for fish genomics