Cited by 5Genetic diversity and population structureGenetic and phenotypic traits in livestockForensic and Genetic Research

Microsatellite DNA variability in the populations of muskoxen Ovibos moschatus transplanted into the Russian North

Gordeeva, N. V., Sipko, T. P., Gruzdev, A. P.·2009·Russian Journal of Genetics

Abstract

The muskoxen populations introduced to the Taimyr Peninsula and Wrangel Island in 1974 to 1975 were examined for sequence variation at seven microsatellite loci. Donor material originated from the populations of Banks Island (Canada) and Eastern Greenland. Relative to the allele frequencies, both introduced populations demonstrated rather strong deviation from the populations of the native range. At the same time, population allelic structures evidenced that they were closer to the Greenland populations. Estimates of genetic diversity at microsatellite loci (expected heterozygosity and the allele number) in the introduced muskoxen were found to be high for populations originating from a small number of founder individuals. In the immigrants, linkage disequilibrium and deviation of the genotype frequencies from the Hardy-Weinberg proportions were observed, which was mainly caused by the deficit of heterozygotes. The same pattern was also typical of native populations and was explained in terms of specific population structure and demographic processes. The latter were manifested as a periodic decline of the effective population size, resulting in the prevailing influence of genetic drift and inbreeding. The consequences of genetic drift were not as dramatic, as could be expected, which may be explained by a high mutation rate of neutral microsatellite loci and fast growth of the new populations.

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Crossref · 10.1134/s1022795409070096

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  • Present day muskoxen are challenged by low genetic variability and extremely low diversity in the major histocompatibility complex, potentially impacting their ability to respond to infectious disease.

    “This has left present day muskoxen challenged by low genetic variability (Hansen et al. 2018) and extremely low diversity in the major histocompatibility complex, potentially impacting their ability to respond to infectious disease (Gordeeva et al. 2009; Cooley et al. 2011; Thulin et al. 2011).”

    From Muskox status, recent variation, and uncertain future (2020) · cites this paper as Gordeeva et al. 2009

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Authors
Gordeeva, N. V., Sipko, T. P., & Gruzdev, A. P.
Affiliations
Russian Academy of Sciences (RU)
Corresponding author
Gordeeva, N. V.
Venue
Russian Journal of Genetics
Published
2009-07
Volume
45
Issue
7
Pages
817-825
ISSN
  • 1022-7954 (ISSN-L)
  • 1608-3369
OpenAlex
W2114570288
Cited by
5
References
42
Citations by year
2025: 1 · 2024: 1 · 2019: 2
FWCI
0.19
Type
journal article
Language
en
Open access
closed
Locations
  • Russian Journal of Genetics (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic diversity and population structure
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and phenotypic traits in livestock
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Forensic and Genetic Research
Keywords
Ovibos moschatus, microsatellite DNA, genetic variation, introduced populations, founder effect, genetic drift, inbreeding, linkage disequilibrium, Hardy-Weinberg deviation, effective population size, population structure, allele frequency, Taimyr Peninsula, Wrangel Island, Banks Island, East Greenland
MeSH terms
Acclimatization, Animals, Arctic Regions, Greenland, Ruminants, Russia, Genetic Variation, Microsatellite Repeats

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