Figure 1

Phylogeny of the mitochondrial DNA haplotypes. The tree is rooted with the Mus spretus sequence. Branch lengths are calculated by maximum likelihood and the bootstrap values are obtained after 500 resampling. Bold: Malagasy haplotypes: MDG1 [Antananarivo]; MDG2 [Firarazana, Ambodifaho and 2 Manakasina]; MDG3 [Ambodifaho]; MDG4 [Ampadratokana]; MDG5 [Kamolandy]; MDG6 [Mahajanga]; MDG7 [Antafotenona]; MDG8 [Nanarena, Ampadratokana, Ambalatenona and 2 Manakasina; (see Table 1 for geographic references of localities). Italics: reference populations from: aPrager et al, 1998, bPrager et al, 1996, cPrager et al, 1993, dpresent study).