Comparison of Navigation-Related Brain Regions in Migratory versus Non-Migratory Noctuid Moths.
Comparison of Navigation-Related Brain Regions in Migratory versus Non-Migratory Noctuid Moths.
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DOI：
10.3389/fnbeh.2017.00158
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发表时间：
2017
影响因子：
3
通讯作者：
Heinze S
中科院分区：
文献类型：
--
作者：
de Vries L;Pfeiffer K;Trebels B;Adden AK;Green K;Warrant E;Heinze S
大脑的结构和功能在所有动物中都是紧密相关的。虽然这些关系最终是不同神经元连线的表现，但神经回路结构的许多变化导致了在大脑区域水平上已经可见的更大规模的改变。定位这种差异可以作为一个灯塔，用来识别与物种生态需求密切相关的大脑区域，从而引导我们更详细地研究大脑如何构成物种特异性行为的基础。特别是在感官需求方面，密切相关的物种之间神经组织的体积差异反映了与感官能力相对应的进化投资。同样，生活方式对记忆的要求也揭示了与学习相关的区域的类似适应。目前还不清楚这是否也适用于不同导航策略的物种。虽然已经确定了与昆虫导航控制相关的大脑区域（中央复合体（CX），侧复合体（LX）和前视结节（AOTU）），但仍然不知道以何种方式进行了进化投资以适应特别苛刻的导航策略。因此，我们已经产生了平均形状的地图集的导航相关的大脑区域的迁移和非迁移的夜蛾蛾，并使用体积分析，以确定差异。我们进一步将结果与来自帝王蝶的相同数据进行了比较。而我们发现的AOTU，LX和procerebral桥（PB）的结节单位的大小在两个蛾之间的差异，这些并没有明确反映所有三个物种的迁移行为。我们的结论是，导航策略，至少在鳞翅目昆虫长距离迁移的情况下，是不容易从整体神经解剖推断。这表明，需要确保成功的迁移行为的适应中发现的详细布线特征的神经回路的导航差异，只有通过详细的生理和超微结构的调查。提出的结果有助于这一任务在两个方面。首先，所确定的神经元体积差异可作为电生理学的有希望的初始目标。第二，新的标准地图集提供了一个解剖学参考框架，用于嵌入从伯公蛾和萝卜蛾大脑中获得的所有功能数据。
Brain structure and function are tightly correlated across all animals. While these relations are ultimately manifestations of differently wired neurons, many changes in neural circuit architecture lead to larger-scale alterations visible already at the level of brain regions. Locating such differences has served as a beacon for identifying brain areas that are strongly associated with the ecological needs of a species—thus guiding the way towards more detailed investigations of how brains underlie species-specific behaviors. Particularly in relation to sensory requirements, volume-differences in neural tissue between closely related species reflect evolutionary investments that correspond to sensory abilities. Likewise, memory-demands imposed by lifestyle have revealed similar adaptations in regions associated with learning. Whether this is also the case for species that differ in their navigational strategy is currently unknown. While the brain regions associated with navigational control in insects have been identified (central complex (CX), lateral complex (LX) and anterior optic tubercles (AOTU)), it remains unknown in what way evolutionary investments have been made to accommodate particularly demanding navigational strategies. We have thus generated average-shape atlases of navigation-related brain regions of a migratory and a non-migratory noctuid moth and used volumetric analysis to identify differences. We further compared the results to identical data from Monarch butterflies. Whereas we found differences in the size of the nodular unit of the AOTU, the LX and the protocerebral bridge (PB) between the two moths, these did not unambiguously reflect migratory behavior across all three species. We conclude that navigational strategy, at least in the case of long-distance migration in lepidopteran insects, is not easily deductible from overall neuropil anatomy. This suggests that the adaptations needed to ensure successful migratory behavior are found in the detailed wiring characteristics of the neural circuits underlying navigation—differences that are only accessible through detailed physiological and ultrastructural investigations. The presented results aid this task in two ways. First, the identified differences in neuropil volumes serve as promising initial targets for electrophysiology. Second, the new standard atlases provide an anatomical reference frame for embedding all functional data obtained from the brains of the Bogong and the Turnip moth.
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影响因子：
16.2
作者：
Heinze, Stanley;Reppert, Steven M.
通讯作者：
Reppert, Steven M.
影响因子：
2.5
作者：
Homberg, U;Hofer, S;Gebhardt, S
通讯作者：
Gebhardt, S
DOI：
10.1007/bf00199481
发表时间：
1994-11-01
期刊：
JOURNAL OF COMPARATIVE PHYSIOLOGY A-SENSORY NEURAL AND BEHAVIORAL PHYSIOLOGY
影响因子：
--
作者：
HOMBERG, U
通讯作者：
HOMBERG, U
影响因子：
2.5
作者：
Heinze, Stanley;Florman, Jeremy;Reppert, Steven M.
通讯作者：
Reppert, Steven M.
影响因子：
2.5
作者：
Heinze, Stanley;Reppert, Steven M.
通讯作者：
Reppert, Steven M.