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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Molecular and environmental factors connected to diapause and aging in insect
 ZDECHOVANOVÁ, Lenka
Current models state that insect peripheral oscillators are directly responsive to light, while mammalian peripheral clock genes are coordinated by a master clock in the brain via intermediate factors, possibly hormonal. We show that the expression levels of two circadian clock genes, period (per) and Par Domain Protein 1 (Pdp1) in the peripheral tisue of an insect model species are inversely affected by contrasting photoperiods. The effect of photoperiod on per and Pdp1 mRNA levels was found to be mediated by the juvenile hormone. Our results provide the first experimental evidence for hormonal regulation of circadian clock gene expression in insects.
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