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Comparative Study
. 1980;26(2-4):158-64.
doi: 10.1159/000131437.

Variable positions of NORs in Mus musculus

H Winking, K Nielsén, A Gropp
Comparative Study

Variable positions of NORs in Mus musculus

H Winking et al. Cytogenet Cell Genet. 1980.

Abstract

Silver-NOR staining has been applied to mouse (Mus musculus) chromosomes of different feral populations from Italy, Yougoslavia, and Germany and to chromosomes of M. spretus, a closely related species, from Portugal. In addition to the known pattern of proximal sites on smaller autosomes, terminal sites with silver-NORs on chromosomes 4 and 13 were detected. In M. spretus only terminal NORs were present on chromosomes 4, 13, and 19. Thus, the location of silver-NORs within the genus Mus and M. musculus subspecies shows wide variation.

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