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We aimed to clarify the regulation of cuticular protein (CP) gene expression and the resulting insect cuticular layers by comparing the expression pattern of CP genes and related ecdysone-responsive transcription factor (ERTF) genes, the coding amino acid sequences of CP genes, and histological observation. The expression of CP and ERTF genes during pupal and adult stages was examined via qPCR. The...
We aimed to understand the underlying mechanism that regulates successively expressed cuticular protein (CP) genes around pupation in Bombyx mori. Quantitative PCR was conducted to clarify the expression profile of CP genes and ecdysone‐responsive transcription factor (ERTF) genes around pupation. Ecdysone pulse treatment was also conducted to compare the developmental profiles and the ecdysone induction...
In the present study, we found that different ecdysone-responsive transcription factors were expressed differentially in different regions of the epidermis at around pupation. βFTZ-F1 transcripts were strongly but E74A transcripts were barely observed in the thoracic region of the epidermis, and vice versa in the abdominal region. Transcripts of all the examined transcription factors were observed...
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