2015 Fiscal Year Final Research Report
How commonly amplitude dependent phase shift of adult eclosion timing occurred in insects?
| Project/Area Number |
25440244
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Ecology/Environment
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| Research Institution | Miyagi Gakuin Women's University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
WATARI Yasuhiko 芦屋大学, 臨床教育学部, 教授 (80240539)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | 羽化リズム / 温度較差 / カイコ / ショウジョウバエ |
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| Outline of Final Research Achievements |
The aim of this study is to determine 1) if amplitude dependent phase shift of adult eclosion rhythm is found in insects pupating above the ground and 2) in the egg hatching rhythm. In both the fruit fly (D. melanogaster) and the silk moth (B. mori), the insects pupated above the ground, the adult eclosion occurred earlier with decreasing temperature amplitude. These observations strongly suggest that amplitude dependent phase shift of adult eclosion timing is based on mechanistic properties of the eclosion clock.
We analyzied katydids hatching rhythm under thermoperiods with different temperature amplitude, but failed to obtain the data. This is at least in part due to the lower hatchability of eggs collected in the field.
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| Free Research Field |
生理生態学
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