Phase polyphenism in locusts: factors inducing gregarization

蝗虫的相多型现象：诱导群聚化的因素

• 批准号: 23380038
• 负责人: TANAKA Seiji
• 金额: $ 11.9万
• 依托单位: National Institute of Agrobiological Sciences
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23380038/
• 关键词: 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

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.

沙漠蝗对种群密度或拥挤的反应表现出阶段多型性。在这项研究中，我们研究了控制后代的大小和颜色，以及若虫的体色和群居行为的因素，在这蝗虫了解的机制控制相位多型。拥挤诱导相依赖的变化，在这蝗虫的身体颜色和行为。我们发现，视觉刺激单独可以诱导绿色孤雌鱼发展黑色模式。我们还发现，短至1天的拥挤即可导致绿色独居3龄若虫形成黑色图案。第三龄孤立的蝗虫，通常避免其他个人，需要2天的拥挤开始被吸引到其他个人。这些发现将提供一个很好的分析系统，以检查潜在的遗传机制，调节相位多型在这蝗虫。

项目成果

Tactile stimuli perceived by the antennae cause the isolated females to produce gregarious offspring in the desert locust, Schistocerca gregaria

• DOI: 10.1016/j.jinsphys.2010.09.009
• 发表时间: 2011-01-01
• 期刊: JOURNAL OF INSECT PHYSIOLOGY
• 影响因子: 2.2
• 作者: Maeno, Koutaro;Tanaka, Seiji;Harano, Ken-ichi
• 通讯作者: Harano, Ken-ichi

Body color and behavioral gregarization in desert locusts

沙漠蝗虫的体色和行为群化

• 发表时间: 2013
• 作者: 田中誠二・徳田誠;Tanaka S
• 通讯作者: Tanaka S

First record for the occurrence and genetics of a short-winged morph in the migratory locust, Locusta migratoria (Orthoptera: Acrididae).

飞蝗短翅变体的出现和遗传学的首次记录，蝗虫（直翅目：蝗科）。

• DOI: 10.1665/034.021.0204
• 发表时间: 2012
• 期刊: Journal of Orthoptera Research
• 影响因子: 0.8
• 作者: Tanaka;Seiji
• 通讯作者: Seiji

A green morph of the migratory locust, Locusta migratoria L. (Orthoptera: Acrididae) that occurred after inbreeding.

近亲繁殖后发生的绿色飞蝗，Locusta migratoria L.（直翅目：蝗科）。

• DOI: 10.1665/034.021.0205
• 发表时间: 2012
• 期刊: Journal of Orthoptera Research
• 影响因子: 0.8
• 作者: Tanaka;Seiji
• 通讯作者: Seiji

The occurrence in the migratory locust, Locusta migratoria (Orthoptera: Acrididae), of a short-winged morph with no obvious fitness advantages over the long-winged morph

飞蝗（直翅目：蝗科）中出现的短翅变种，与长翅变种相比没有明显的适应性优势

• DOI: 10.14411/eje.2013.078
• 发表时间: 2013
• 作者: Yudai Nishide;S. Tanaka
• 通讯作者: S. Tanaka