Functional analysis of genes involved in color pattern formation in Lepidoptera.

In addition to the genome editing technology, novel functional analyses using electroporation are powerful tools to reveal the gene function in the color pattern formation. Using these methods, several genes involved in various larval color pattern formation are clarified in the silkworm Bombyx mori and some Papilio species. Furthermore, the coloration pattern mechanism underlying the longtime mystery of female-limited Batesian mimicry of Papilio polytes has been recently revealed. This review presents the recent progress on the molecular mechanisms and evolutionary process of coloration patterns contributing to various mimicry in Lepidoptera, especially focusing on the gene function in the silkworm and Papilio species.