Acta Entomologica Sinica (1997) 40, 343-348

Qun Wang, Jianguang Du and Xianian Cheng (1997)
[Genetic studies on wing dimorphism of brown planthopper, Nilaparvata lugens (Homoptera : Delphacidae)]
Acta Entomologica Sinica 40 (4), 343-348
Abstract: Experiments were carried out with the pure-bred strains of both macropterous (M) and brachypterous (B) brown planthopper, Nilaparvata lugens (Stal) in order to know the effects of parents, rice growth stage and population density on the wing dimorphism. Under the same laboratory rearing condtion, the F₁ progenies of B-female X B-male, B-female X M-male, M-female X B-male and M-female X M-male provided 98%, 92%, 64% and 29% brachyptery adults respectively, and the variance between each other was significant. At the density of more than 10 nymphs per plant, the percentages of both female and male macroptery adults whose nymphs were reared on yellow maturity rice were higher than those on milk-filling stage rice. In single rear experiment, most of the female individuals turned out to be brachyptery, while males were dominated by macroptery; regardless of their parents and rice growth stage. Conclusion can be made from our studies that the wing dimorphism is controlled by a sex related gene expression regulation system affected by many factors.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Chinese)

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Nilaparvata lugens