Genetic diversity of the house mouse Mus musculus and geographic distribution of its subspecies-specific RAPD markers on the territory of Russia

Genetic diversity of the house mouse Mus musculus and geographic distribution of its... Genetic diversity and geographic distribution of taxon-specific RAPD markers was examined in ten local populations of the house mouse Mus musculus (n = 42). The house mice were generally characterized by moderate genetic variation: polymorphism P 99 = 60%, P 95 = 32.57%; heterozygosity H = 0.12; the observed allele number n a = 1.6; the effective allele number n e = 1.18; the within-population differentiation ϑs = 0.388; and Shannon index I = 0.19. The degree of genetic isolation of individual local populations was greatly variable. The genetic subdivision index G st varied from 0.162 to 0.770 at the gene flow of Nm = 2.58−0.149, while the among-population distances D N varied from 0.026 to 0.178. The largest part of the genetic diversity was found among the populations (H T = 0.125), while the within-population diversity was twice lower (H S = 0.06). The samples examined were well discriminated relative to the sets of RAPD markers. The character distribution pattern provided conditional subdivision of the mice into the “western” and the “eastern” groups with the putative boarder along the Baikal Lake. The first group was characterized by the prevalence of the markers typical of M. m. musculus and M. m. domesticus. The second group was characterized by the prevalence of the markers typical of M. m. musculus, M. m. gansuensis, M. m. castaneus, M. m. domesticus, and M. m. wagneri. The genotype of the nominative subspecies M. m. musculus was background for all populations. In the populations examined some of earlier described subspecies-specific molecular markers were found at different frequencies, pointing to the involvement of several subspecies of M. musculus in the process of hybridization. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Genetic diversity of the house mouse Mus musculus and geographic distribution of its subspecies-specific RAPD markers on the territory of Russia

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2008 by MAIK Nauka
Subject
Biomedicine; Microbial Genetics and Genomics; Animal Genetics and Genomics; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795408050116
Publisher site
See Article on Publisher Site

Abstract

Genetic diversity and geographic distribution of taxon-specific RAPD markers was examined in ten local populations of the house mouse Mus musculus (n = 42). The house mice were generally characterized by moderate genetic variation: polymorphism P 99 = 60%, P 95 = 32.57%; heterozygosity H = 0.12; the observed allele number n a = 1.6; the effective allele number n e = 1.18; the within-population differentiation ϑs = 0.388; and Shannon index I = 0.19. The degree of genetic isolation of individual local populations was greatly variable. The genetic subdivision index G st varied from 0.162 to 0.770 at the gene flow of Nm = 2.58−0.149, while the among-population distances D N varied from 0.026 to 0.178. The largest part of the genetic diversity was found among the populations (H T = 0.125), while the within-population diversity was twice lower (H S = 0.06). The samples examined were well discriminated relative to the sets of RAPD markers. The character distribution pattern provided conditional subdivision of the mice into the “western” and the “eastern” groups with the putative boarder along the Baikal Lake. The first group was characterized by the prevalence of the markers typical of M. m. musculus and M. m. domesticus. The second group was characterized by the prevalence of the markers typical of M. m. musculus, M. m. gansuensis, M. m. castaneus, M. m. domesticus, and M. m. wagneri. The genotype of the nominative subspecies M. m. musculus was background for all populations. In the populations examined some of earlier described subspecies-specific molecular markers were found at different frequencies, pointing to the involvement of several subspecies of M. musculus in the process of hybridization.

Journal

Russian Journal of GeneticsSpringer Journals

Published: May 23, 2008

References

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