Fig. 17.

Species tree and the hybrid origin of Junonia nirgosuffusa. (a) Boxplots of sequence divergence for DNA segments by the tree topology they produce: ‘at’, autosomes; ‘Z’, Z chromosome. The species abbreviations are: c for Junonia coenia, g for Junonia grisea, and n for J nigrosuffusa. (b) Z chromosome of J. nigrosuffusa is coloured by the origin of its regions: red from J. stemosa, green from J. grisea and blue from J. coenia. (c) Number of positions occupied by a base pair unique to each species (not present in any other species). (d) F3 statistic computed for all species analysed in this work. Colours of species in (c) and (d) correspond to Fig. 6.