Fig. 1
Demonstration of a multiple merger genealogy within a species network. A multiple merger gene genealogy with topology (((a 1 ,a 2 , a 3 ), c 1 ), (b 1 , c 2 , d 1 )), of which the coalescence events pointed to by arrows labelled “multiple merger” indicate coalescence of 3 lines, simulated in a species network with topology ((((B,C)s1)h1#H1,A)s2,(h1#H1,D)s3)r, where H1 is the probability that a lineage has its ancestry from its left parental population