Prior distributions of the parameters for the best-fit (RAOEB) model.

a∼U and ∼G denote Uniformly and Gamma distribution shapes. ND (for not drawn) indicates composite parameters resulting from the combination of other parameters (e.g. the Sub-Saharan African population size results from the combination of N', tA and αA);
bTimes T and onsets t are expressed in number of years (generation times of 25 years);
cPrior distributions of the onset and the rate of African expansion were set to prior uniform distributions (unrealistic outcomes of sub-Saharan African populations, i.e. larger than 1 billion of individuals were eliminated);
dThe rates of expansion α are the per generation increase of population sizes expressed in percent of individuals (i.e. αA = 0.01 means the population exponentially increased by 1% of the individuals per year);
eEffective population sizes N are given in numbers of individuals;
fThe intensity of the out-of-Africa bottleneck is the ratio between population sizes before and after the out-of-Africa exodus;
gancestral and modern migration rates are the proportion of migrants before and after the Out-of-Africa exodus;
hThe replacement rate gives the proportion of current gene lineages brought by modern humans during the out-of-Africa exodus;
iThe mutation rate is expressed in per generation per site; and
jthe recombination rate is expressed in per generation per pair of adjacent bases. Note: Underlined parameters were estimated following the ABC procedure.