Age estimates of relevant nodes in the North African H1 phylogeny illustrated in Figure 1.

aAverage number of base substitutions in the whole mtDNA from the root sequence type excluding 16519 and the 16182C, 16183C and 16194C [32]. bStandard error calculated from an estimate of the genealogy [31]. cUsing the corrected molecular clock proposed by Soares et al. [32]. dNegative lower values were ignored. eAverage number of synonymous substitutions in the whole mtDNA from the root sequence type. fAccording to the recalibrated synonymous rate of Loogväli et al. [33].