Domain specific genetic mosaic system in the Drosophila eye.

Domain specific genetic mosaic system in the Drosophila eye.
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DOI:
10.1002/dvg.22355
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发表时间:
2013-01
期刊:
影响因子:
1.5
通讯作者:
Singh, Amit
Singh, Amit
中科院分区:
生物学4区
文献类型:
--
作者:
Tare, Meghana;Puli, Oorvashi Roy;Moran, Michael T.;Kango-Singh, Madhuri;Singh, Amit

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遗传马赛克方法通常用于果蝇的眼睛,通过完全取消或错误表达细胞子集中的基因来解开它在发育过程中的作用。经典的遗传镶嵌方法涉及到所有发展中领域的随机克隆生成。因此,需要对大样本进行筛选,以生成和分析发育中眼睛特定区域的克隆。为了解决基因在轴向模式形成过程中的结构域特定功能,我们开发了一个通过结合Gal4/UAS和FLP/FRT系统来产生镶嵌克隆的系统,该系统将允许在眼球背侧和腹侧边缘产生功能丧失和功能获得的克隆。我们使用Bifid-Gal4驱动程序来驱动UAS-FLP的表达。该试剂可用于(I)研究基因在眼睛背腹轴指定过程中的时空功能;(Ii)分析参与DV模式形成的基因的遗传上位性;(Iii)以区域特异性的方式进行全基因组筛选。
Genetic mosaic approach is commonly employed in the Drosophila eye by completely abolishing or misexpressing a gene within a subset of cells to unravel its role during development. Classical genetic mosaic approach involves random clone generation in all developing fields. Consequently, a large sample size needs to be screened to generate and analyze clones in specific domains of the developing eye. To address domain specific functions of genes during axial patterning, we have developed a system for generating mosaic clones by combining Gal4/UAS and FLP/FRT system which will allow generation of loss-of-function as well as gain-of-function clones on the dorsal and ventral eye margins. We used the bifid-Gal4 driver to drive expression of UAS-flippase (FLP). This reagent can have multiple applications in (i) studying spatio-temporal function of a gene during dorso-ventral axis specification in the eye, (ii) analyzing genetic epistasis of genes involved in DV patterning and (iii) conducting genome wide screens in a domain specific manner.
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