Publications by authors named "Oleg V Trapezov"

To date, only 10 of the more than 30 fur colours that had been observed in American mink (Neogale vison) have been linked to specific genes. The Royal pastel fur colour is part of a large family of brownish colours that are quite similar to one another, making breeding and selecting processes more difficult. Here we carried out whole-genome sequencing of five American minks with Royal pastel (b/b) phenotypes originating from two distinct mink populations.

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Here, we present the first evidence for brain adaptation in pigs tolerant to the human presence, as a behavioral trait favoring domestication. The study was carried out on minipiglets from population bred at the Institute of Cytology and Genetics (Novosibirsk, Russia). We compared the behavior, metabolism of monoaminergic neurotransmitter systems, and functional activity of the hypothalamic-pituitary-adrenal system, as well as neurotrophic markers in the brain of minipigs differing by tolerance to human presence (HT and LT - high and low tolerance).

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Sable (Martes zibellina) and American mink (Neogale vison) are valuable species characterized by a variety of coat colour produced on fur farms. Black crystal fur phenotype is Mendelian codominant trait: heterozygous animals (C/ +) have white guard hairs scattered predominantly on the spine and the head, while homozygous (C/C) minks have coats resembling the Himalayan (c/c) or white Hedlund (h/h) types. It is one of the most recent of more than 35 currently known phenotypic traits of fur colour in American mink.

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The classical genetic analysis describes more 35 mutations that are involved in the formation of the American mink (Neovison vison) fur colour phenotype. To date, only eight of these mutations have been linked to specific genes. Shadow is a member of the commercially valuable Black cross colour family.

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Article Synopsis
  • - Over 35 fur colors are known in American minks, but only six have specific genetic links; Moyle fur color, which is a brownish hue, complicates breeding efforts due to its similarity to other colors.
  • - Whole genome sequencing of two minks with different fur phenotypes revealed two mutations in the RAB38 gene, which is important for melanin production and melanosome development.
  • - The findings emphasize RAB38's role in fur color variation and can help mink breeders select for desirable fur traits in their breeding programs.
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The fur colour of American mink (Neovison vison) involves over 35 traits, but only three of these have been linked to specific genes. Despite being the most popular, coat colours Silverblue and Hedlund white remain uncharacterized genetically. The former is the first genetic mutant of fur colour identified in minks, while the latter is a commercially valuable phenotype that can be dyed easily.

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Background: The minipig is a promising model in neurobiology and psychopharmacology. However, automated tracking of minipig behavior is still unresolved problem.

New Method: The study was carried out on white, agouti and black (or spotted) minipiglets (n=108) bred in the Institute of Cytology and Genetics.

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