Phylogenetic relationship and time of divergence of Mus terricolor with reference to other Mus species

Journal of genetics

MIN BAHADUR1²  BISHWANATH CHATTERJEE¹  MAHUA RUDRA² 

[1] Laboratory of Developmental Biology, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA$$;Genetics and Molecular Biology Laboratory, Department of Zoology, University of North Bengal, Siliguri 734 013, India$$

关键词: mitochondrial DNA;    phylogenetic relationship;    sequence divergence;    Mus terricolor;    Mus spretus;    Mus caroli .;   

DOI  :  

学科分类：生物科学（综合）

来源: Indian Academy of Sciences

【 摘 要 】

Mitochondrial DNA control region ofMus terricolor, three aboriginal speciesM. spretus,M. macedonicus,M. spicilegus;the Asian lineageM. caroli,M. cervicolor,M. cookii; and the two house mice,M. musculus domesticusandM. m. castaneuswere analysed to estimate the substitution rate, phylogenetic relationship and the probable time of divergence. Results showedthatM. spretus,M. caroliandM. terricolorare highly diverged from each other (caroli/terricolor=0.146,caroli/spretus=0.147 andterricolor/spretus=0.122), whereasM. spretusshowed less divergence with two house mice species (0.070 and0.071). Sequence divergence betweenM. terricolorand the Palearctic group were found to be ranging from 0.121 to 0.134.Phylogenetic analysis by minimum evolution, neighbour-joining, unweighed pair group method with arithmetic mean andmaximum parsimony showed almost similar topology. Two major clusters were found, one included the Asian lineage,M.caroli,M. cookiiandM. cervicolorand the other included the house miceM. m. domesticus,M. m. castaneusand the aboriginalmiceM. macedonicusandM. spicilegusalong withM. spretus, forming the Palearctic clade.M. terricolorwas positionedbetween the Palearctic and Asian clades. Results showed that Palearctic-terricolorand the Asian lineages diverged 5.47million years ago (Mya), whileM. terricolorhad split around 4.63 Mya from their ancestor.M. cervicolor,M. cookiiandM.carolidiverged between 4.70 and 3.36 Mya, which indicates thatM. terricolorand the Asian lineages evolved simultaneously.M. spretusis expected to have diverged nearly 2.9 Mya from their most recent common ancestor

【 授权许可】

Unknown