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Distinct protocerebral neuropils associated with attractive and aversive female-produced odorants in the male moth brain

文献类型： 外文期刊

作者： Jonas Hansen Kymre;XiaoLan Liu;Elena Ian;Christoffer Nerland Berge;GuiRong Wang;Bente Gunnveig Berg;XinCheng Zhao;Xi Chu

作者机构：

关键词： electrophysiology;Helicoverpa armigera;interspecific signal;macroglomerular complex;neuronal morphology;neuroscience;pheromone

期刊名称： eLife

ISSN： 2050-084X

年卷期： 2022 年 10.0 卷

页码：

收录情况： JCR（2021版）

摘要： The pheromone system of heliothine moths is an optimal model for studying principles underlying higher-order olfactory processing. In Helicoverpa armigera, three male-specific glomeruli receive input about three female-produced signals, the primary pheromone component, serving as an attractant, and two minor constituents, serving a dual function, that is, attraction versus inhibition of attraction. From the antennal-lobe glomeruli, the information is conveyed to higher olfactory centers, including the lateral protocerebrum, via three main paths - of which the medial tract is the most prominent. In this study, we traced physiologically identified medial-tract projection neurons from each of the three male-specific glomeruli with the aim of mapping their terminal branches in the lateral protocerebrum. Our data suggest that the neurons' widespread projections are organized according to behavioral significance, including a spatial separation of signals representing attraction versus inhibition - however, with a unique capacity of switching behavioral consequence based on the amount of the minor components. © 2021, Kymre et al.

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