Mitochondrial DNA restriction maps ofMus booduga, Mus terricolor andMus musculus tytleri
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Restriction maps of milochondrial DNA of the Indian pygmy field miceMus booduga andM. terricolor, and the house mouseM. musculus tytleri were determined with seven six-cutter restriction enzymes. The restriction map of the mitochondrial DNA of the laboratory mouseM. m. domesticus was used as a reference. Pairwise comparison was made of the mitochondrial DNAs for the presence or absence of the restriction sites, and per cent sequence divergence was calculated. The results show that the sequence divergence betweenbooduga andterricolor is 8-7% while thedomesticus-tytleri andbooduga-terricolor groups are divergent by 16-3%. The mtDNA sequence divergences we have obtained suggest that thebooduga-terricolor lineage might not have diverged before the Southeast Asiancervicolor-cookii-caroli lineage during evolution of these lineages of the subgenusMus as inferred by others earlier. On the other hand, it seems likely that these lineages evolved in parallel.
KeywordsMus booduga Mus terricolor Mus musculus mitochondrial DNA restriction mapping sequence divergence
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- Bahadur M. and Sharma T. 1993 Results of hybridization between two chromosome types ofMus dunni, and occurrence of a unique feature of increase in size of autosomal heterochromatic short arms.XVI All India Cell Biology Conference, Abstract no. 82Google Scholar
- Chatterjee B. and Rao G. R. K. 1984 A simple method for purification of mitochondrial DNA.Indian J. Biochem. Biophys. 21: 377–380Google Scholar
- Ellerman J. R. 1961Fauna of India-Mammalia, Rodentia Vol. III, Pt II (ed.) M. L. Roonwal (Delhi: Zoological Survey of India) pp 483–884Google Scholar
- Jukes T. H. and Cantor C. R. 1969 Evolution of protein molecules. InMammalian protein metabolism Vol. III (ed.) H. N. Munro (New York: Academic Press) pp 21–132Google Scholar
- Musser G. G. and Carleton M. D. 1993 Family Muridae. InMammal species of the world: A taxonomic and geographic reference 2nd edn (ed.) D. E. Wilson and D. M. Reeder (Washington, DC: Smithsonian Institution) pp 501–756.Google Scholar
- Patnaik R., Bahadur M., Sharma T. and Sahni A. 1993 A comparative analysis of molars ofMus booduga, Mus dunni and fossilMus of the Indian subcontinent: Phylogenetic and palaeobiogeographic implications.Curr. Sci. 65: 782–786Google Scholar
- Sharma T., Cheong N., Sen P. and Sen S. 1986 Constitutive heterochromatin and evolutionary divergence ofMus dunni, M. booduga andM. musculus. Curr. Top. Microbiol.Immunol. 127: 35–44Google Scholar
- Sharma T., Balajee A. S. and Cheong N. 1990 Chromosomal speciation: Constitutive heterochromatin and evolutionary differentiation of the Indian pygmy field mice. InTrends in chromosomal research (ed.) T. Sharma (New Delhi: Narosa and Springer)Google Scholar