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Molecular and cytological analysis of widely-used Gal4 driver lines for Drosophila neurobiology
BMC Genetics Pub Date : 2020-10-22 , DOI: 10.1186/s12863-020-00895-7
Anna A. Ogienko , Evgeniya N. Andreyeva , Evgeniya S. Omelina , Anastasiya L. Oshchepkova , Alexey V. Pindyurin

The Drosophila central nervous system (CNS) is a convenient model system for the study of the molecular mechanisms of conserved neurobiological processes. The manipulation of gene activity in specific cell types and subtypes of the Drosophila CNS is frequently achieved by employing the binary Gal4/UAS system. However, many Gal4 driver lines available from the Bloomington Drosophila Stock Center (BDSC) and commonly used in Drosophila neurobiology are still not well characterized. Among these are three lines with Gal4 driven by the elav promoter (BDSC #8760, #8765, and #458), one line with Gal4 driven by the repo promoter (BDSC #7415), and the 69B-Gal4 line (BDSC #1774). For most of these lines, the exact insertion sites of the transgenes and the detailed expression patterns of Gal4 are not known. This study is aimed at filling these gaps. We have mapped the genomic location of the Gal4-bearing P-elements carried by the BDSC lines #8760, #8765, #458, #7415, and #1774. In addition, for each of these lines, we have analyzed the Gal4-driven GFP expression pattern in the third instar larval CNS and eye-antennal imaginal discs. Localizations of the endogenous Elav and Repo proteins were used as markers of neuronal and glial cells, respectively. We provide a mini-atlas of the spatial activity of Gal4 drivers that are widely used for the expression of UAS–target genes in the Drosophila CNS. The data will be helpful for planning experiments with these drivers and for the correct interpretation of the results.

中文翻译:

果蝇神经生物学中广泛使用的Gal4驱动程序系的分子和细胞学分析

果蝇中枢神经系统(CNS)是研究保守神经生物学过程的分子机制的便捷模型系统。果蝇中枢神经系统特定细胞类型和亚型中基因活性的操纵通常是通过使用二元Gal4 / UAS系统来实现的。但是,许多可从Bloomington果蝇保藏中心(BDSC)获得并常用于果蝇神经生物学的Gal4驱动程序系仍然没有很好的特征。其中有三株由elav启动子驱动的Gal4(BDSC#8760,#8765和#458),一株由repo启动子驱动的Gal4(BDSC#7415)和69B-Gal4株(BDSC#1774)。 )。对于大多数这些品系,转基因的确切插入位点和Gal4的详细表达模式尚不清楚。这项研究旨在填补这些空白。我们已经绘制了由BDSC系#8760,#8765,#458,#7415和#1774携带的带有Gal4的P元素的基因组位置。此外,对于这些细胞系中的每一个,我们已经分析了第三龄幼虫CNS和眼-肠-肾上腺虚像盘中Gal4驱动的GFP表达模式。内源性Elav和Repo蛋白的定位分别用作神经元和神经胶质细胞的标记。我们提供了Gal4驱动程序空间活动的微型地图集,这些驱动程序已广泛用于果蝇CNS中UAS靶基因的表达。数据将有助于计划使用这些驱动程序进行的实验以及对结果的正确解释。我们已经分析了第三龄幼虫中枢神经系统和眼前肾上腺虚像盘中由Gal4驱动的GFP表达模式。内源性Elav和Repo蛋白的定位分别用作神经元和神经胶质细胞的标记。我们提供了Gal4驱动程序空间活动的微型地图集,这些驱动程序已广泛用于果蝇CNS中UAS靶基因的表达。数据将有助于计划使用这些驱动程序进行的实验以及对结果的正确解释。我们已经分析了第三龄幼虫中枢神经系统和眼前肾上腺虚像盘中由Gal4驱动的GFP表达模式。内源性Elav和Repo蛋白的定位分别用作神经元和神经胶质细胞的标记。我们提供了Gal4驱动程序空间活动的微型地图集,这些驱动程序已广泛用于果蝇CNS中UAS靶基因的表达。数据将有助于计划使用这些驱动程序进行的实验以及对结果的正确解释。我们提供了Gal4驱动程序空间活动的微型地图集,这些驱动程序已广泛用于果蝇CNS中UAS靶基因的表达。数据将有助于计划使用这些驱动程序进行的实验以及对结果的正确解释。我们提供了Gal4驱动程序空间活动的微型地图集,这些驱动程序已广泛用于果蝇CNS中UAS靶基因的表达。数据将有助于计划使用这些驱动程序进行的实验以及对结果的正确解释。
更新日期:2020-10-26
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