Evolutionary and dispersal history of Eurasian house mice Mus musculus clarified by more extensive geographic sampling of mitochondrial DNA

H Suzuki, M Nunome, G Kinoshita, K P Aplin, P Vogel, A P Kryukov, M-L Jin, S-H Han, I Maryanto, K Tsuchiya, H Ikeda, T Shiroishi, H Yonekawa and K Moriwaki


Figure 1.

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Collection of localities and mitochondrial genotypes in Eurasia of M. musculus samples examined in this study (a). New samples genotyped for this study are shown. Detailed locality names and sample codes are listed in Supplementary Table 1. Five major mitochondrial groups representing five subspecies groups, M. m. musculus (blue: MUS), M. m. domesticus (red: DOM), and M. m. castaneus (yellow: CAS), M. m. gentilulus (white: GEN) and the divergent lineage occurring in Nepal (orange: NEP) are differentially shown. The specific haplotype group of DOM that broadly dispersed to a variety of countries (Australia, Canada, China, Germany, Indonesia, Senegal, Somalia) are marked with arrowheads. Together with those from Prager et al. (1998), spatial patterns for the mitochondrial genotypes are shown for mice from Central Asia based on combination of new and previously published sequences (sources) (b), where further sub-division of the CAS lineage into four (CAS-1, CAS-2, CAS-3, CAS-4) are detected. The types of the four sub-groups of CAS are shown in circle with numerical numbers (black, Prager et al., 1998; red, in this study). Further sub-division of the MUS lineages into two, MUS-1 (light blue) and MUS-2 (dark blue), and the MUS-1 sublineage into three (MUS-1a, MUS-1b, MUS-1c) is suggested in this study (a and c).