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Confocal Microscopy of Reovirus Transport in Living Dorsal Root Ganglion Neurons

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DigiTAG–a RNA Sequencing Approach to Analyze Transcriptomes of Rare Cell Populations in Drosophila melanogaster

Authors: Lisa Landskron, Francois Bonnay, Thomas R. Burkard and Jürgen A. Knoblich, date: 11/05/2020, view: 542, Q&A: 0

[Abstract]

Cell-type specific transcriptional programs underlie the development and maintenance of organs. Not only distinct cell types within a tissue, even cells with supposedly identical cell fates show a high degree of transcriptional heterogeneity. Inevitable, low cell numbers are a major hurdle to study transcriptomes of pure cell populations. Here we

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Quantification of Methylglyoxal Levels in Cowpea Leaves in Response to Cowpea Aphid Infestation

Authors: Jacob R. MacWilliams, Monika Ostaszewska-Bugajska, Klaudia Borysiuk, Bożena Szal and Isgouhi Kaloshian, date: 10/20/2020, view: 265, Q&A: 0

[Abstract] Aphids are a serious pest of crops across the world. Aphids feed by inserting their flexible hypodermal needlelike mouthparts, or stylets, into their host plant tissues. They navigate their way to the phloem where they feed on its sap causing little mechanical damage to the plant. Additionally, while feeding, aphids secrete proteinaceous effectors ...

Probe-Seq: Method for RNA Sequencing of Specific Cell Types from Animal Tissue

Authors: Ryoji Amamoto, Mauricio D. Garcia, Emma R. West, Jiho Choi, Sylvain W. Lapan, Elizabeth A. Lane, Norbert Perrimon and Constance L. Cepko, date: 09/20/2020, view: 1027, Q&A: 0

[Abstract] Most organs and tissues are composed of many types of cells. To characterize cellular state, various transcription profiling approaches are currently available, including whole-tissue bulk RNA sequencing, single cell RNA sequencing (scRNA-Seq), and cell type-specific RNA sequencing. What is missing in this repertoire is a simple, versatile method ...

Preparation of Drosophila Polytene Chromosomes, Followed by Immunofluorescence Analysis of Chromatin Structure by Multi-fluorescence Correlations

Authors: Terra M. Kuhn, Shawn C. Little and Maya Capelson, date: 07/05/2020, view: 1396, Q&A: 0

[Abstract] Drosophila larval salivary gland polytene chromosome squashes have been used for decades to analyze genome-wide protein-binding patterns, transcriptional activation processes, and changes in chromatin structure at specific genetic loci. There have been many evolutions of the squashing protocol over the years, with sub-optimal ...

Superresolution Microscopy of Drosophila Indirect Flight Muscle Sarcomeres

Authors: Szilárd Szikora, Tibor Novák, Tamás Gajdos, Miklós Erdélyi and József Mihály, date: 06/20/2020, view: 1097, Q&A: 0

[Abstract] Sarcomeres are extremely highly ordered macromolecular assemblies where proper structural organization is an absolute prerequisite to the functionality of these contractile units. Despite the wealth of information collected, the exact spatial arrangement of many of the H-zone and Z-disk proteins remained unknown. Recently, we developed a powerful ...

Generation, Analyzing and in-vivo Drug Treatment of Drosophila Models with IBMPFD

Authors: Ting Zhang, Bruce A. Hay and Ming Guo, date: 05/20/2020, view: 1147, Q&A: 0

[Abstract] Missense mutations of p97/cdc48/Valosin-containing protein (VCP) cause inclusion body myopathy, Paget disease with frontotemporal dementia (IBMPFD) and other neurodegenerative diseases. The pathological mechanism of IBMPFD is not clear and there is no treatment. We generated Drosophila models of IBMPFD in adult flight muscle in ...

Application of Mechanical Forces on Drosophila Embryos by Manipulation of Microinjected Magnetic Particles

Authors: Arturo D’Angelo and Jérôme Solon, date: 05/05/2020, view: 1073, Q&A: 0

[Abstract] Cells generate mechanical forces to shape tissues during morphogenesis. These forces can activate several biochemical pathways and trigger diverse cellular responses by mechano-sensation, such as differentiation, division, migration and apoptosis. Assessing the mechano-responses of cells in living organisms requires tools to apply controlled local ...

Bimolecular Fluorescence Complementation (BiFC) for Studying Sarcomeric Protein Interactions in Drosophila

Authors: Océane Marescal, Frieder Schöck and Nicanor González-Morales, date: 04/05/2020, view: 1560, Q&A: 0

[Abstract] Protein-protein interactions in Drosophila myofibrils are essential for their function and formation. Bimolecular Fluorescence Complementation (BiFC) is an effective method for studying protein interactions and localization. BiFC relies on the reconstitution of a monomeric fluorescent protein from two half-fragments when in proximity. Two ...

Phototactic T-maze Behavioral Assay for Comparing the Functionality of Color-sensitive Photoreceptor Subtypes in the Drosophila Visual System

Authors: Hunter S. Shaw, Joe Larkin and Yong Rao, date: 03/20/2020, view: 1144, Q&A: 0

[Abstract] The Drosophila retina contains light-sensitive photoreceptors (R cells) with distinct spectral sensitivities that allow them to distinguish light by its spectral composition. R7 and R8 photoreceptors are important for color vision, and can be further classified into pale (p) or yellow (y) subtypes depending on the rhodopsin expressed. ...

Insect Feeding Assays with Spodoptera exigua on Arabidopsis thaliana

Authors: Yanrong You, Chunpeng An and Chuanyou Li, date: 03/05/2020, view: 1469, Q&A: 0

[Abstract] Plant-insect interaction is an important field for studying plant immunity. The beet armyworm, Spodoptera exigua, is one of the best-known agricultural pest insects and is usually used to study plant interactions with chewing insects. Here, we describe a protocol for insect feeding assays with Spodoptera exigua lavae using model ...

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