Hisashi Tobita

ORCID: 0000-0003-3526-4834
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About
Contact & Profiles
Research Areas
  • Neurobiology and Insect Physiology Research
  • Circadian rhythm and melatonin
  • Physiological and biochemical adaptations
  • Light effects on plants
  • Insect and Arachnid Ecology and Behavior
  • Plant Molecular Biology Research

Czech Academy of Sciences, Biology Centre
2025

The University of Tokyo
2022-2025

Most insects enter diapause, a state of physiological dormancy crucial for enduring harsh seasons, with photoperiod serving as the primary cue its induction, ensuring proper seasonal timing process. Although involvement circadian clock in photoperiodic time measurement has been demonstrated through knockdown or knockout genes, gene cryptochrome 1 (cry1), which functions photoreceptor implicated photoentrainment across various insect species, remains unclear. In bivoltine strains silkworm,...

10.1016/j.ibmb.2024.104153 article EN cc-by Insect Biochemistry and Molecular Biology 2024-07-02

Circadian clocks are timekeeping mechanisms that help organisms anticipate periodic alterations of day and night. These widespread, in the case animals, they rely on genetically related components. At molecular level, animal circadian clock consists several interconnected transcription-translation feedback loops. Although setup is generally conserved, some important differences exist even among various insect groups. Therefore, we decided to identify silico all major components closely genes...

10.1101/2025.01.17.633578 preprint EN bioRxiv (Cold Spring Harbor Laboratory) 2025-01-22

Abstract Most insects enter diapause, a state of physiological dormancy crucial for enduring harsh seasons, with photoperiod serving as the primary cue its induction, ensuring proper seasonal timing process. Although involvement circadian clock in photoperiodic time measurement has been demonstrated through knockdown or knockout genes, precise molecular mechanisms this context remain unclear. In bivoltine strains silkworm, Bombyx mori , embryonic diapause is maternally controlled and...

10.1101/2024.05.13.593801 preprint EN cc-by-nd bioRxiv (Cold Spring Harbor Laboratory) 2024-05-14

Abstract Diapause is one of the most important traits that have sustained insects to thrive. Insects can prospectively arrest their development and increase environmental stress-resistance by entering diapause. The photoperiod signal indicates proper timing enter Circadian clock genes are shown be involved in photoperiodic diapause induction various insect species. silkworm, Bombyx mori , enters at embryonic stage. In bivoltine strains, determination affected temperature conditions during...

10.1101/2022.05.16.492110 preprint EN cc-by-nd bioRxiv (Cold Spring Harbor Laboratory) 2022-05-16
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