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Multiplicity of B microchromosomes in a siberian population of mice Apodemus peninsulae (2n = 48 + 4–30 B chromosomes)

  • Animal Genetics
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Abstract

Differentiation of four Siberian populations of East-Asian (Korean) field mice (Apodemus peninsulae) inhabiting the basin of the mid-stream of the Yenisei River was carried out according to the variants of the B chromosome system. A multiplicity of B microchromosomes (from 4 to 30) was found for the first time in all 26 mice from the left shore of the Yenisei River in the mid-stream area. All of them probably belong to a population with B microchromosomes. It is likely that in this population further reorganization of B microchromosomes into B macrochromosomes typical of this species does not occur. Two mice from this population had a large number of B chromosomes (26) earlier not observed in this species. In one mouse, the modal number of B microchromosomes was 30. This is a new maximum number of B chromosomes in this mouse species.

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Authors and Affiliations

  1. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, 119071, Russia

    Yu. M. Borisov & A. G. Afanas’ev

  2. Institute of Fundamental Biology and Biotechnology, Siberian Federal University, Krasnoyarsk, 660041, Russia

    T. T. Lebedev

  3. Institute of Cytology and Genetics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia

    M. N. Bochkarev

Authors
  1. Yu. M. Borisov
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  2. A. G. Afanas’ev
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  3. T. T. Lebedev
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  4. M. N. Bochkarev
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Correspondence to Yu. M. Borisov.

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Original Russian Text © Yu.M. Borisov, A.G. Afanas’ev, T.T. Lebedev, M.N. Bochkarev, 2010, published in Genetika, 2010, Vol. 46, No. 6, pp. 798–804.

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Borisov, Y.M., Afanas’ev, A.G., Lebedev, T.T. et al. Multiplicity of B microchromosomes in a siberian population of mice Apodemus peninsulae (2n = 48 + 4–30 B chromosomes). Russ J Genet 46, 705–711 (2010). https://doi.org/10.1134/S1022795410060116

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  • DOI: https://doi.org/10.1134/S1022795410060116

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