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首页> 外文期刊>Cell and Tissue Research >Species- and size-related differences in dopamine-like immunoreactive clusters in the brain of Nasonia vitripennis and N. giraulti
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Species- and size-related differences in dopamine-like immunoreactive clusters in the brain of Nasonia vitripennis and N. giraulti

机译：在纳斯诺伊伏特菲尼斯脑大脑和N.Giraulti的大脑中类似多巴胺样免疫反应簇的物种和大小相关差异

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An extreme reduction in body size has been shown to negatively impact the memory retention level of the parasitic wasp Nasonia vitripennis. In addition, N. vitripennis and Nasonia giraulti, closely related parasitic wasps, differ markedly in the number of conditioning trials required to form long-term memory. These differences in memory dynamics may be associated with differences in the dopaminergic neurons in the Nasonia brains. Here, we used dopamine immunoreactivity to identify and count the number of cell bodies in dopaminergic clusters of normal- and small-sized N. vitripennis and normal-sized N. giraulti. We counted in total a maximum of approximately 160 dopaminergic neurons per brain. These neurons were present in 9 identifiable clusters (D1a, D1b, D2, D3, D4a, D4b, D5, D6 and D7). Our analysis revealed that N. giraulti had fewer cells in the D2 and D4a clusters but more in D4b, compared with normal-sized N. vitripennis. In addition, we found fewer cells in the D5 and D7 cluster of small-sized N. vitripennis compared to normal-sized N. vitripennis. A comparison of our findings with the literature on dopaminergic clusters in the fruit fly Drosophila melanogaster and the honey bee Apis mellifera indicates that clusters D2, D3 and D5 may play a role in memory formation in Nasonia wasps. The results from both the species comparison and the size comparison are therefore of high interest and importance for our understanding of the complex intricacies that underlie the memory dynamics of insects.
机译：体尺寸的极端降低已经显示出对寄生虫WASONIA vitripennis的记忆保留水平产生负面影响。此外，N.Vitripennis和Nasonia Giraulti，密切相关的寄生虫黄蜂，在形成长期记忆所需的调理试验的数量时显着不同。这些内存动态的这些差异可能与纳斯诺伊脑中的多巴胺能神经元的差异有关。在这里，我们使用多巴胺免疫反应性来鉴定并计算正常和小型N.Vitripennis和正常大小的N.Giraulti的多巴胺能簇中的细胞体的数量。我们每脑大脑最多算上大约160个多巴胺能神经元。这些神经元存在于9个可识别的簇（D1A，D1B，D2，D3，D4A，D4B，D5，D6和D7）中。我们的分析表明，与正常大小的N.Vitripennis相比，D2和D4A簇中的N.Giraulti在D2和D4a簇中具有更少的细胞，但在D4B中更多。此外，与正常大小的N.Vitripennis相比，我们发现D5和D7小尺寸N.Vitripennis的D5和D7簇中的细胞更少。我们在水果蝇果蝇的多巴胺能簇上的研究结果比较了果蝇和蜂蜜蜜蜂蒙皮拉米拉菌，表明簇D2，D3和D5可能在纳斯诺伊黄蜂的记忆中发挥作用。因此，物种比较和大小比较的结果对于我们对昆虫的记忆动态的复杂复杂性的了解，对我们的复杂复杂性具有很高的兴趣和重要性。

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