Fig. 4.

ARG illustrating the ‘separating distance’ and the ‘noise distance’. To be able to detect the recombination event, the nodes labeled 1 and 2 have to be sufficiently different. That is, the ‘separating distance’ needs to be large enough. Contrariwise, the larger the ‘noise distance’, the less precisely the sequences of Nodes 1 and 2 can be reconstructed from the tip sequences. That is, the ‘noise distance’ should be small. The definition of the separating and noise distance is given in Supplementary Section 4. For details about the symbolism used in the ARG, see Figure 2.