Cytogenetic and Genome Research
Original Article
Genome comparison in the genus Mus: a study with B1, MIF (mouse interspersed fragment), centromeric, and Y-chromosomal repetitive sequencesNishioka Y.Department of Biology, McGill University, Montreal, Quebec (Canada)
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Article / Publication Details
Accepted: February 23, 1989
Published online: May 13, 2008
Issue release date: 1989
Number of Print Pages: 6
Number of Figures: 0
Number of Tables: 0
ISSN: 1424-8581 (Print)
eISSN: 1424-859X (Online)
For additional information: https://www.karger.com/CGR
Abstract
Using four repetitive sequences, we compared DNAs isolated from Mus caroli, M. cookii, M. hortulanus, M. musculus, M. pahari, M. saxicola, and M. spretus. Except for Bl, these probes showed species-specific hybridization patterns. Mouse interspersed fragment (MIF) sequences were present in all species examined, but those defined by the 1.3-kb EcoRl band were fewer in M. pahari and M. saxicola than in the other species. The Y-chromosomal probe showed male-specific accumulation only in M. hortulanus, M. musculus, and M. spretus, which are known to be closely related. The genetic difference between M. spretus and the other two species (M. hortulanus and M. musculus) was clearly demonstrated by a M. musuclus centromeric sequence that hybridized strongly to M. hortulanus and M. musculus DNA but was underrepresented in the genome of M. spretus. These results may suggest the usefulness of these repetitive sequences in the classification of Mus species that display only subtle morphological differences.
© 1989 S. Karger AG, Basel
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Article / Publication Details
Accepted: February 23, 1989
Published online: May 13, 2008
Issue release date: 1989
Number of Print Pages: 6
Number of Figures: 0
Number of Tables: 0
ISSN: 1424-8581 (Print)
eISSN: 1424-859X (Online)
For additional information: https://www.karger.com/CGR
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