2010 Fiscal Year Final Research Report
Studies on the mechanisms of the signal transduction related to the juvenile hormone and the nutrition for the caste differentiation of termites
| Project/Area Number |
20200059
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research a proposed research project)
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| Allocation Type | Single-year Grants |
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| Research Field |
Ecology/Environment
Developmental biology
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| Research Institution | University of Toyama |
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Principal Investigator |
MAEKAWA Kiyoto University of Toyama, 大学院・理工学研究部(理学), 准教授 (20345557)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 生理生態 / 進化発生 |
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| Research Abstract |
Morphological changes and gene expression patterns during the molts into presoldiers induced by the JH application to workers were performed to clarify the switching mechanisms of soldier differentiation in some termite species. Insulin-signaling gene expression patterns were different from two species, which had soldiers with the quite dissimilar defensive organs. Moreover, the RNAi technique could be applied in the higher termites for the first time. Knockdown of a regulatory patterning gene resulted in a reduction or complete loss of the soldier-specific organ formation.
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