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首页> 外文期刊>Molecular brain >Aggression and social experience: genetic analysis of visual circuit activity in the control of aggressiveness in Drosophila
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Aggression and social experience: genetic analysis of visual circuit activity in the control of aggressiveness in Drosophila

机译：侵略和社会经验：控制果蝇侵略性的视觉回路活动的遗传分析。

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Background Animal aggressiveness is controlled by genetic and environmental factors. Among environmental factors, social experience plays an important role in modulating aggression in vertebrates and invertebrates. In Drosophila, pheromonal activation of olfactory neurons contributes to social suppression of aggression. While it was reported that impairment in vision decreases the level of aggression in Drosophila, it remains unknown if visual perception also contributes to the modulation of aggression by social experience. Results In this study, we investigate the role of visual perception in the control of aggression in Drosophila. We took several genetic approaches to examine the effects of blocking visual circuit activity on fly aggressive behaviors. In wild type, group housing greatly suppresses aggressiveness. Loss of vision by mutating the ninaB gene does not affect social suppression of fly aggression. Similar suppression of aggressiveness by group housing is observed in fly mutants carrying a mutation in the eya gene leading to complete loss of eye. Chronic visual loss does not affect the level of aggressiveness of single-housed flies that lack social experience prior to behavioral tests. When visual circuit activity is acutely blocked during behavioral test, however, single-housed flies display higher levels of aggressiveness than that of control flies. Conclusion Visual perception does not play a major role in social suppression of aggression in Drosophila. For single-housed individuals lacking social experience prior to behavioral tests, visual perception decreases the level of aggressiveness.
机译：背景技术动物的侵略性受遗传和环境因素控制。在环境因素中，社交经验在调节脊椎动物和无脊椎动物的侵略中起着重要作用。在果蝇中，嗅觉神经元的信息素激活促进了社会对侵略的抑制。虽然据报道视力障碍会降低果蝇的攻击水平，但视觉感知是否也能通过社会经验来促进攻击的调节仍是未知的。结果在这项研究中，我们调查了视觉感知在果蝇侵略控制中的作用。我们采取了几种遗传方法来检查阻止视觉回路活动对果蝇侵略行为的影响。在野生型中，团体住房极大地抑制了侵略性。通过突变ninaB基因导致视力丧失不会影响对果蝇侵略的社会抑制。在携带eya基因突变的苍蝇突变体中观察到类似的通过群体住房抑制侵略性的行为，从而导致完全失明。慢性视力丧失不会影响行为测试之前缺乏社交经验的单笼苍蝇的侵略性水平。但是，如果在行为测试过程中视觉回路的活动被严重阻滞，则单笼蝇的侵略性要比对照蝇高。结论视觉知觉在社交抑制果蝇的侵略中没有主要作用。对于在行为测试之前缺乏社交经验的单身人士，视觉感知会降低攻击性。

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