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1993 Fiscal Year Final Research Report Summary

Studies on origin of diapause, wing polymorphism and photoperiodism in insects

Research Project

Project/Area Number 03660037
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 植物保護
Research InstitutionHirosaki University

Principal Investigator

ANDO Yoshikazu  Hirosaki University, Faculty of Agriculture, Professor, 農学部, 教授 (20003775)

Co-Investigator(Kenkyū-buntansha) MASAKI Sinzo  Hirosaki University, Professor Emeritus, 名誉教授 (00003418)
Project Period (FY) 1991 – 1993
KeywordsDiapause / Wingpolymorphism / Photoperiodism / Biological clock / Cricket / Grasshopper / Noctuid / Selection
Research Abstract

1. The Dianemobius fascipes-nigrofasciatus species group shows a geographic cline in the incidence and intensity of egg diapause in parallel to the climatic gradient extending from the tropics to the temperate region. A similar clinal variation has been established in the laboratory by isolating several lines from the subtropical Ishigaki population and selecting for different diapause traits.
2. Twenty-four isofemale lines isolated from the Ishigaki population showed a wide range of variation in the critical daylength for the wing-form detemination. We concluded that the liability for macroptery but not the photoperiodic time measurement was responsible for this variation. Selection schems for different critical photoperiods were effective only in shortening but not lengthening the critical photoperiod.
3. The photoperiodic time measurement for the induction of pupal diapause in Mamestra brassicae showed either an oscillator or an hourglass response to various experimental protocols. We infer that the photoperiodic time measurement is performed by an hourglass mechanism and a circadian system is involved in the process of diapause induction.
4. We explored factors causing a large variation in hatching time of overwintered eggs of Oxya jezoensis. We found that eggs laid in late autumn successfully overwintered before the diapause stage. In early spring, they reached the diapause stage and the diapause delayd embryogenesis. Moreover, eggs after overwintering survived a long period of immersion in water, and could hatch after the paddy field was draibed in autumn.

  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] Nagase,A.: "Thermal and photoperiodic responses in aestivating pupae of Dictyoploca japonica" Applied Entomology and Zoology. 26. 387-396 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masaki,S.: "Photoperiodic control of larval development and wing form in Modicogryllus sp." Ecological Research. 7. 25-30 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masaki,S.: "Photoperiodic time measurement in seasonal adaptations of ground crickets." Circadian Clocks from Cell to Human. 73-88 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kimura,Y.: "Effect of light period on dark-time measurement for diapaure induction in Mamestra brassicae" Journal of Insect Physiology. 38. 681-686 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kimura,Y.: "Hourglass and Oscillator expression of photoperiodic diapause response in the cabbage moth Mamestra brassicae" Physiological Entomology. 18. 240-246 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Ando,Y.: "Outbreaks and delayed hatching after hibernation in the rice grasshopper,Oxya yezoensis" Applied Entomology and Zoology. 28. 217-225 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shimizu,T.: "Injury causes microptery in the ground cricket,Dianemobius fascipes" Journal of Insect Physiology. 39. 1021-1027 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shimizu,T.: "Genetic variability of the wing-form respose to photoperiod in a sub-tropical population of the ground cricket,Dianemobius fascipes" Zoological Science. 10. 935-944 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Nagase, A.& Masaki, S.: "Thermal and photoperiodic responses in aestivating pupae of Dictyoploca japonica (Lepidoptera : Saturniidae)" Applied Entomology and Zoology. 26(3). 387-396 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masaki, S.& Sugahara, T.: "Photoperiodic control of larval development and wing form in Modicogryllus sp.(Orthoptera : Gryllidae)" Ecological Research. 7(1). 25-30 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masaki, S., Igarashi, R., Watari, Y.& Fujibayashi, Y.: "Photoperiodic time measurement in seasonal adaptations of ground crickets" Circadian Clocks from Cell to Human. 73-88 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kimura, Y.& Masaki, S.: "Effect of light period on dark-time measurement for diapause induction in Mamestra brassicae" Journal of Insect Physiology. 38(9). 681-686 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kimura, Y.& Masaki, S.: "Hourglass and oscillator expression of photoperiodic diapause response in the cabbage moth Mamestra brassicae" Physiological Entomology. 18. 240-246 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shimizu, T.& Masaki, S.: "Injury causes microptery in the ground cricket, Dianemobius fascipes" Journal of Insect Physiology. 39(12). 1021-1027 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shimizu, T.& Masaki, S.: "Genetic variability of the wing-form response to photoperiod in a subtropical population of the ground cricket, Dianemobius fascipes" Zoological Science. 10. 935-944 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ando, Y.& Yamashiro, C.: "Outbreaks and delayd hatching after hibernation in the rice grasshopper, Oxya yezoensis Shiraki (Orthoptera : Catantopidae)" Applied Entomology and Zoology. 28(2). 217-225 (1993)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1995-03-27  

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