Photoperiod and temperature separately regulate nymphal development through JH and insulin/TOR signaling pathways in an insect.

ABSTRACT: Insects living in the temperate zone enter a physiological state of arrested or slowed development to overcome an adverse season, such as winter. Developmental arrest, called diapause, occurs at a species-specific developmental stage, and embryonic and pupal diapauses have been extensively studied in mostly holometabolous insects. Some other insects overwinter in the nymphal stage with slow growth for which the mechanism is poorly understood. Here, we show that this nymphal period of slow growth is regulated by temperature and photoperiod through separate pathways in the cricket Modicogryllus siamensis The former regulates the growth rate, at least in part, through the insulin / target of rapamycin (TOR) signaling pathway. Lower temperature down-regulates the expression of insuli

SUBMITTER: Miki T 

PROVIDER: S-EPMC7071924 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature