При поддержке: The study was supported by State Budgeted Project 0324-2019-0041. Use of the equipment provided by the Shared Access “Center of Laboratory Animal Genetic Resources” of the Institute of Cytology and Genetics (Novosibirsk), was supported by the Russian Ministry of Education and Science (unique project identifier RFMEFI62117X0015). The authors are grateful to N.E. Gruntenko for providing the specimen strains, and to Yu.Yu. Ilinsky for information on mitotype characteristics.