Fig. 6
T min under the Yule pure birth process for speciation at rate λ speciation events per coalescent time unit. a \(\mathbb {E}[T_{\min }]\) as a function of the number of species k. The y-axis is plotted on a logarithmic scale. b The number of gene trees n required in Eq. 14 for obtaining with probability q all species tree bipartitions in a gene tree set, as a function of \(\mathbb {E}[T_{\min }]\) values from a. The value of q is fixed at 0.99. Note that the maximal number of independent gene trees in a genome is approximately 104 to 105