Comparison of the circadian eclosion rhythm between non-diapause and diapause pupae in the onion fly, Delia antiqua: the effect of thermoperiod.

Comparison of the circadian eclosion rhythm between non-diapause and diapause pupae in the onion fly, Delia antiqua: the effect of thermoperiod.
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洋葱蝇非滞育蛹和滞育蛹的昼夜羽化节律比较,Delia antiqua:热周期的影响。

DOI:
10.1016/s0022-1910(02)00157-9
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发表时间:
2002
影响因子:
2.2
通讯作者:
Y. Watari
Y. Watari
中科院分区:
农林科学3区
文献类型:
--
作者:
Y. Watari

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当非滞育和滞育蛹期的Deliaantiqua在不同的温度周期(T为25 °C,C为15或20 °C,TC 15或TC 20)中暴露于恒定黑暗(DD)中时,大多数两种类型的蝇在温度上升之前羽化。低温使羽化时间延迟。非滞育蛹与滞育蛹的羽化时间存在显著差异,滞育蛹的羽化时间早于非滞育蛹。两种蛹在经历TC 15或TC 2012:12 h后转移到恒定低温(15或20 °C)下,羽化均表现出昼夜节律性。非滞育蛹和滞育蛹的羽化节律的自由运行周期(τ)在转移到恒定低温后都发生了变化,表明这种变化代表了一个短暂的循环,直到温度敏感振荡器再次耦合到温度不敏感起搏器。但滞育蛹的τ比非滞育蛹的τ短。结果表明,非滞育蛹和滞育蛹在温度周期条件下羽化时间的差异与它们的τ s不同有关。
When non-diapause and diapause pupae of Deliaantiqua were exposed to various thermoperiods where thermophase (T) was 25 °C and the cryophase (C) was 15 or 20 °C (TC15or TC20) in constant darkness (DD), the majority of both types of flies emerged before the rise in temperature. Eclosion time was delayed at the lower cryophase temperature. Moreover, there was a significant difference in the time of adult eclosion between non-diapause and diapause pupae; diapause pupae eclosed earlier than non-diapause pupae. When the two types of pupae were transferred to a constant low temperature (15 or 20 °C) after having experienced TC15or TC2012:12 h, they showed circadian rhythmicity in eclosion. The free-running period (τ) of the eclosion rhythm changed after transfer to constant low temperatures in both non-diapause and diapause pupae, suggesting that this change represents a transient cycle until the temperature-sensitive oscillator is coupled again to the temperature-insensitive pacemaker. However, diapause pupae tended to show a shorter τ than non-diapause pupae. This observation suggests that the difference in adult eclosion time under thermoperiodic conditions between non-diapause and diapause pupae is related to their different τ s.
洋葱蝇非滞育蛹和滞育蛹之间昼夜羽化节律的比较,Delia antiqua:节律性的变化。
DOI: --
发表时间: 2005
期刊: Journal of Insect Physiology 51
影响因子: --
作者:
Watari;Y.
通讯作者: Y.