Drosophila Brainbow: a recombinase-based fluorescence labeling technique to subdivide neural expression patterns.

Drosophila Brainbow: a recombinase-based fluorescence labeling technique to subdivide neural expression patterns.
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DOI:
10.1038/nmeth.1566
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发表时间:
2011-03
期刊:
影响因子:
48
通讯作者:
Simpson, Julie H.
Simpson, Julie H.
中科院分区:
生物学1区
文献类型:
--
作者:
Hampel, Stefanie;Chung, Phuong;McKellar, Claire E.;Hall, Donald;Looger, Loren L.;Simpson, Julie H.

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我们在果蝇中开发了一种多色神经元标记技术,将专门针对不同神经群体的能力与随机颜色选择提供的标签多样性结合起来。脊椎动物 Brainbow 的这种适应利用重组来选择可通过免疫荧光检测到的三种表位标记蛋白之一。该构造的两个副本产生六种明亮的、可分离的颜色。在这里,我们使用果蝇 Brainbow 显示同一制剂中多个触角叶投射神经元谱系的神经支配模式,并观察单个胺能神经元的相对轨迹。神经束,甚至数百微米长的单个神经突,都可以进行明确的颜色标记。我们追踪食管下神经节中的运动神经元,并将它们与神经肌肉接头相关联,以显示它们特定的长鼻肌目标。在同一制剂中独立可视化多个谱系或神经元投影的能力极大地推进了绘制神经元如何连接到回路的目标。
We developed a multicolor neuron labeling technique in Drosophila melanogaster combining the power to specifically target different neural populations with the label diversity provided by stochastic color choice. This adaptation of vertebrate Brainbow uses recombination to select one of three epitope-tagged proteins detectable with immunofluorescence. Two copies of this construct yield six bright, separable colors. Here we use Drosophila Brainbow to show the innervation patterns of multiple antennal lobe projection neuron lineages in the same preparation and to observe the relative trajectories of individual aminergic neurons. Nerve bundles, and even individual neurites hundreds of microns long, can be followed with definitive color labeling. We trace motor neurons in the subesophageal ganglion and correlate them to neuromuscular junctions to show their specific proboscis muscle targets. The ability to independently visualize multiple lineage or neuron projections within the same preparation greatly advances the goal of mapping how neurons connect into circuits.
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