Characterization of a centromeric marker on mouse Chromosome 11 and its introgression in a domesticus/musculus hybrid zone

Characterization of a centromeric marker on mouse Chromosome 11 and its introgression in a... It has been proposed that the distribution of Robertsonian chromosome fusions and the Chromosome 11 Nucleolar Organizer Region (NOR) in the Danish hybrid zone between M. m. musculus and M. m. domesticus stems from centromeric incompatibilities between the two subspecies. To test this hypothesis, we identified and characterized a diagnostic subspecific marker closely linked to the centromere on mouse Chromosome 11. Using an allele-specific PCR assay, we investigated the introgression pattern of this centromere in a large sample of mice from a North–South transect of the hybrid zone in Jutland. Domesticus alleles were found to introgress far away from the center of the zone on the musculus side. These results suggest there is no incompatibility between the domesticus centromere of Chromosome 11 in the musculus genomic background. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Mammalian Genome Springer Journals

Characterization of a centromeric marker on mouse Chromosome 11 and its introgression in a domesticus/musculus hybrid zone

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Publisher
Springer Journals
Copyright
Copyright © 2004 by Springer-Verlag
Subject
Life Sciences; Anatomy; Cell Biology; Zoology
ISSN
0938-8990
eISSN
1432-1777
D.O.I.
10.1007/s00335-004-2397-x
Publisher site
See Article on Publisher Site

Abstract

It has been proposed that the distribution of Robertsonian chromosome fusions and the Chromosome 11 Nucleolar Organizer Region (NOR) in the Danish hybrid zone between M. m. musculus and M. m. domesticus stems from centromeric incompatibilities between the two subspecies. To test this hypothesis, we identified and characterized a diagnostic subspecific marker closely linked to the centromere on mouse Chromosome 11. Using an allele-specific PCR assay, we investigated the introgression pattern of this centromere in a large sample of mice from a North–South transect of the hybrid zone in Jutland. Domesticus alleles were found to introgress far away from the center of the zone on the musculus side. These results suggest there is no incompatibility between the domesticus centromere of Chromosome 11 in the musculus genomic background.

Journal

Mammalian GenomeSpringer Journals

Published: Jan 1, 2004

References

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