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Flow of Mitochondrial DNA across a Species Boundary

Restriction analysis shows that wild Scandinavian mice belonging to the species Mus musculus contain the mitochondrial DNA of a neighboring species, M. domesticus. This demonstration results from comparisons of Scandinavian mice with authentic M. domesticus and M. musculus from other parts of Europe...

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Bibliographic Details
Published in:Proceedings of the National Academy of Sciences - PNAS 1983-04, Vol.80 (8), p.2290-2294
Main Authors: Ferris, Stephen D., Sage, Richard D., Huang, Chun-Ming, Nielsen, Jorn Tonnes, Ritte, Uzi, Wilson, Allan C.
Format: Article
Language:English
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Summary:Restriction analysis shows that wild Scandinavian mice belonging to the species Mus musculus contain the mitochondrial DNA of a neighboring species, M. domesticus. This demonstration results from comparisons of Scandinavian mice with authentic M. domesticus and M. musculus from other parts of Europe. Electrophoretic and immunological analysis of eight diagnostic proteins confirms that mice from north of the hybrid zone in Denmark are M. musculus in regard to their nuclear genes. In contrast, the mice tested from this region and a nearby part of Sweden have exclusively M. domesticus types of mitochondrial DNA. Phylogenetic analysis of the restriction maps suggests that the mitochondrial DNAs found in Scandinavian M. musculus could stem from a single M. domesticus female.
ISSN:0027-8424
1091-6490
DOI:10.1073/pnas.80.8.2290