2017 Fiscal Year Final Research Report
Experimental evolution of altruistic behaviors in non-social insects
| Project/Area Number |
15K18609
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Ecology/Environment
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 社会性 |
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| Outline of Final Research Achievements |
In this study, experimental evolution was used to create altruistic behaviors in non-social insects. I used the Adzuki bean beetle Callosobruchus chinensis as a model organism. Based on the Hamilton’s inclusive fitness theory, the altruistic behavior was expected to evolve in the high-relatedness treatment in which full-siblings share the same bean as a larval resource. As expected, repression of resource competition evolved after ten generations. We also found some “social” traits in C. chinensis: female adults preferred to lay eggs onto glass beads that was already with eggs laid by other females. Moreover, I conducted genome assembly of C. chinensis using NGS technology. In addition, we studied theoretical aspects of animal social interactions, focusing on mutual random search.
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| Free Research Field |
進化生態学
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