2013 Fiscal Year Final Research Report
Regulatory mechanisms in pupal color development of some butterflies
| Project/Area Number |
23580073
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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 |
Applied entomology
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| Research Institution | Yamaguchi University |
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Principal Investigator |
YAMANAKA Akira 山口大学, 医学(系)研究科(研究院), 准教授 (20274152)
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| Project Period (FY) |
2011 – 2013
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| Keywords | チョウ / 蛹体色 / オレンジ色蛹誘導化因子 / キアゲハ / ナミアゲハ / ジャコウアゲハ / ヒメアカタテハ / ホルモン |
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| Research Abstract |
OPIF-like activity was fractionated as one peak by C18-HPLC using ligatured abdomens of V. cardui pharate pupae. Purification steps for OPIF may be decided although the primary structure of OPIF was not determined. To understand the regulatory mechanism underlying the control of pupal coloration in 4 butterflies, the effect of environmental cues on diapause and/or non-diapause pupal coloration is investigated. In P. machaon, at least two hormonal factors producing brown-white pupae are located in the larval central nervous system, with the secretion of these factors being regulated by the recognition of environmental cues in long-day larvae. In B. alcinous, temperature and humidity experienced after a gut purge are the main factors that affect the diapause pupal coloration. In Po. c-aureum, the pupal color polyphenism is co-regulated by mainly temperature and a small degree photoperiod. Green pupae of P. bianor were mainly produced by a larval food smell and highly relative humidity.
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Research Products
(14 results)
