Haruhiko Fujiwara and colleagues report the genome sequences of two swallowtail butterfly species, Papilio xuthus and Papilio polytes, and the identification of a chromosomal inversion underlying the mimetic phenotype in P. polytes females. The inversion interacts with dsx to control mimetic coloration patterns in an allele-specific manner.
- Hideki Nishikawa
- Takuro Iijima
- Haruhiko Fujiwara