Whole Animal Imaging of Drosophila melanogaster using Microcomputed Tomography.

Whole Animal Imaging of Drosophila melanogaster using Microcomputed Tomography.
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DOI:
10.3791/61515
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发表时间:
2020-09-02
期刊:
Journal of visualized experiments : JoVE
影响因子:
--
通讯作者:
Schoborg TA
Schoborg TA
中科院分区:
其他
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--
作者:
Schoborg TA

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生物医学成像工具可以研究从基因到生物体的跨空间尺度的分子机制。果蝇是一种具有良好特征的模式生物,它得益于使用光学和电子显微镜在细胞和组织水平上了解基因功能。成像平台的应用使我们能够在整个完整生物体的水平上了解基因功能,这将进一步增强我们对遗传机制的了解。在这里,提出了一种完整的动物成像方法,概述了使用微型计算机断层扫描(μ-CT)显示任何发育阶段的果蝇所需的步骤。μ-CT的优势包括商业上可用的仪器和最短的动手时间,以微米级的分辨率产生准确的3D信息,而不需要组织解剖或清除方法。配合加速图像分析和3D渲染的软件,可以对任何组织或器官系统执行详细的形态测量分析,以更好地了解描述性研究和假设检验研究的发育、生理学和解剖学机制。通过利用结合使用电子显微镜、光学显微镜和μ-CT的成像工作流程,可以对基因功能进行彻底的评估,从而进一步提高这种强大的模式生物的有用性。
Biomedical imaging tools permit investigation of molecular mechanisms across spatial scales, from genes to organisms. Drosophila melanogaster, a well-characterized model organism, has benefited from the use of light and electron microscopy to understand gene function at the level of cells and tissues. The application of imaging platforms that allow for an understanding of gene function at the level of the entire intact organism would further enhance our knowledge of genetic mechanisms. Here a whole animal imaging method is presented that outlines the steps needed to visualize Drosophila at any developmental stage using microcomputed tomography (μ-CT). The advantages of μ-CT include commercially available instrumentation and minimal hands-on time to produce accurate 3D information at micron-level resolution without the need for tissue dissection or clearing methods. Paired with software that accelerate image analysis and 3D rendering, detailed morphometric analysis of any tissue or organ system can be performed to better understand mechanisms of development, physiology, and anatomy for both descriptive and hypothesis testing studies. By utilizing an imaging workflow that incorporates the use of electron microscopy, light microscopy, and μ-CT, a thorough evaluation of gene function can be performed, thus furthering the usefulness of this powerful model organism.
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