Steroid hormone ecdysone deficiency stimulates preparation for photoperiodic reproductive diapause.

ABSTRACT: Diapause, a programmed developmental arrest primarily induced by seasonal environmental changes, is very common in the animal kingdom, and found in vertebrates and invertebrates alike. Diapause provides an adaptive advantage to animals, as it increases the odds of surviving adverse conditions. In insects, individuals perceive photoperiodic cues and modify endocrine signaling to direct reproductive diapause traits, such as ovary arrest and increased fat accumulation. However, it remains unclear as to which endocrine factors are involved in this process and how they regulate the onset of reproductive diapause. Here, we found that the long day-mediated drop in the concentration of the steroid hormone ecdysone is essential for the preparation of photoperiodic reproductive diapause in Colaphell

SUBMITTER: Guo S 

PROVIDER: S-EPMC7880476 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature