Homological Series in the Variability of the Coat Color in Fur Animals
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AL GENETICS
Homological Series in the Variability of the Coat Color in Fur Animals O. V. Trapezova, f, *, S. G. Vepreva, E. M. Koldaevab, E. G. Sergeevc, S. V. Fomind, N. S. Fominad, and M. F. Nekrasovae a
Federal Research Center Institute of Cytology and Genetics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia bNational Union of Tribal Organizations, Moscow, 107139 Russia c Research Institute of Fur Breeding and Rabbit Breeding, Moscow, 140143 Russia dKamchatka Branch of the Pacific Institute of Geography, Russian Academy of Sciences, Aleutian Museum of Local Lore, Kamchatka krai, 684500 Russia eNovosibirsk State Agrarian University, Novosibirsk, 630039 Russia f Novosibirsk State University, Novosibirsk, 630090 Russia *e-mail: [email protected] Received April 30, 2020; revised June 8, 2020; accepted June 17, 2020
Abstract—Phenotypic parallelism has been established with similar aberrations of coat color in sables and northern fur seals with known fur color mutations in American mink. On the basis of the similarities in the phenotypic variability of the coat color in these species of distant origin, we can imply the presence of specific coloring markers of the gene component, which ensures adaptation to extreme environmental conditions. Keywords: the law of homologous series in variation, American mink, phenotypic concurrency in color, American mink, sable, northern fur seal, Neovison vison, Martes zibellina, Callorhinus ursinus DOI: 10.1134/S1022795420110101
INTRODUCTION On June 4, 1920, in the city of Saratov, at the 3rd All-Russian Breeding Congress, Nikolai Ivanovich Vavilov reported his famous “Law of Homologous Series in Hereditary Variation.” And already on June 21, 1920, a report appeared in the Saratov newspaper Windows of Growth entitled “Professor N.I. Vavilov’s Discovery.” “Vavilov noticed an amazing repetition or periodicity of characters in various groups or series of the plant world, which makes it possible to predict the existence of still unknown forms, similar to how Mendeleev’s periodic system made it possible to predict the existence of unknown elements” [1]. That is, the very formulation of the law of homological series contains its predictive power, which makes it possible to identify certain types and variants of variability in those species in which they have not yet been carried out. In 1922, the report was translated into English and published in the printing house of the University of Cambridge [2]. In essence, Vavilov formulated a new methodological principle of research in biology: the interpretation of variability in marker traits of a genotype, when it becomes possible to build breeding programs based on the use of oligogens that change the phenotype in a promising direction, in our case for breeding fur-bearing animals.
The article presents the first stage of a directed search for the gene component of parallelism in the variability of hair color in three species belonging to different taxa, very distant in origin: northern fur seals (Callorhinus urs
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