Phase polyphenism in locusts: factors inducing gregarization
| Project/Area Number |
23380038
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Applied entomology
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| Research Institution | National Institute of Agrobiological Sciences |
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Principal Investigator |
TANAKA Seiji 独立行政法人農業生物資源研究所, 昆虫相互作用ユニット, 研究員 (50370664)
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| Co-Investigator(Kenkyū-buntansha) |
安居 拓恵 , 研究員 (80414952)
辻井 直 (辻井 直(藤原直) / 藤原 直) , 研究員 (40568440)
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| Research Collaborator |
西出 雄大
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥18,590,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥4,290,000)
Fiscal Year 2013: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2012: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2011: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
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| Keywords | 相変異 / サバクトビバッタ / 混み合い / 視覚 / 触覚 / 応用昆虫 / 大発生 / 体表物質 |
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| Research Abstract |
The desert locust exhibits phase polyphenism in response to population density or crowding. In this study we examined the factors controlling progeny size and color as well as nymphal body color and gregarious behavior in this locust to understand the mechanism controlling the phase polyphenism. Crowding induces phase-dependent change in body color and behavior in this locust. We found that visual stimuli alone can induce green solitarious nymphs to develop black patterns. We also found that as short as 1 day of crowding can cause green solitarious 3rd instar nymphs to develop black patterns. Third instar isolated nymphs, which normally avoid other individuals, required 2 days of crowding to start being attracted to other individuals. These findings would provide an excellent assay system to examine the underlying genetic mechanism regulating the phase polyphenism in this locust.
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Report
(4 results)
Research Products
(50 results)
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[Journal Article] Effects of barley chromosome addition to wheat on behavior and development of Locusta migratoria nymphs2013
Author(s)
Suematsu, S., Harano, K., Tanaka, S., Kawaura, K., Ogihara, Y., Watari, Y., Saito, O., Tokuda, M
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Journal Title
Scientific Reports
Volume: 3
Issue: 1
Pages: 2577-2577
DOI
Related Report
Peer Reviewed
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