IMR Press / FBL / Volume 25 / Issue 1 / DOI: 10.2741/4796

Frontiers in Bioscience-Landmark (FBL) is published by IMR Press from Volume 26 Issue 5 (2021). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on as a courtesy and upon agreement with Frontiers in Bioscience.

Transcriptional regulation of cuticular genes during insect metamorphosis
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1 Department of Applied Biology, Kyoto Institute of Technology, Sakyo-ku, Kyoto 606-8585, Japan
2 Faculty of Agriculture, Bangladesh Jute Research Institute, Manik Mia Ave., Dhaka-1207, Bangladesh
Send correspondence to: Keiko Takaki, Sakyo-ku, Kyoto 606-8585, Japan, Tel: 81757247776, Fax: 8175724 7776, E-mail:
Front. Biosci. (Landmark Ed) 2020, 25(1), 106–117;
Published: 1 January 2020
(This article belongs to the Special Issue Cutting edge of insect biomedical science)

In some adult holometabolous insects, specific epithelial tissues form imaginal discs, small sac-like clusters of cells that form in the larval body. During metamorphosis, in response to hormones, the discs undergo dramatic changes including cell proliferation and differentiation. In Bombyx mori insects, the cuticular protein (CP) genes, which are expressed at prepupal stage in the wing discs, are divided into six groups according to their developmental expression profile and responsiveness to steroid hormones. In this article, we discuss the expression of CP genes in the wing disc, and examine the molecular mechanisms by which metamorphosis and cell transformations are regulated by hormones in insects.

Cuticle proteins
Imaginal disc
Bombyx mori
Figure 1
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