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Sex Chromosome Mosaicism and Hybrid Speciation among Tiger Swallowtail Butterflies

Figure 5

Estimated divergence times between the parental glaucus and canadensis and the hybrid appalachiensis.

Dates of divergence estimated by IMa2 are: (a) appalachiensis and glaucus: ca 100,000 years ago, (b) appalachiensis and canadensis: ca 90,000 years ago, (c) glaucus and canadensis: ca 580,000 years ago.

Figure 5