Rapid creation of forward-genetics tools for C. briggsae using TALENs: lessons for nonmodel organisms.

Rapid creation of forward-genetics tools for C. briggsae using TALENs: lessons for nonmodel organisms.
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DOI:
10.1093/molbev/mst213
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发表时间:
2014-02
影响因子:
10.7
通讯作者:
Ellis RE
Ellis RE
中科院分区:
生物学1区
文献类型:
--
作者:
Wei Q;Shen Y;Chen X;Shifman Y;Ellis RE

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尽管基因功能的进化研究通常依赖于RNA干扰,但理想的方法是使用反向遗传学来创建零突变,用于跨物种比较,并使用正向遗传学来识别每个物种的新基因。我们已经在线虫中使用了转录激活物样效应核酸酶(TALENS)来促进这两种途径。首先,通过结合金门克隆和TALEN技术,我们可以在任何基因中诱导移码突变。其次,通过将这种方法与生物信息学相结合,我们可以预测和创建在像线虫这样的物种中进行正向遗传分析所需的资源。尽管开发遗传模型生物过去需要数年时间来分离标记突变、平衡器和工具,但使用TALEN,这些试剂现在可以在几个月内生产出来。此外,对相关模式生物中无意义突变的分析允许采用一种直接的方法来制作这些标记和工具。当这些方法一起使用时,可以简化其他生物对正向和反向遗传学的适应。
Although evolutionary studies of gene function often rely on RNA interference, the ideal approach would use reverse genetics to create null mutations for cross-species comparisons and forward genetics to identify novel genes in each species. We have used transcription activator-like effector nucleases (TALENs) to facilitate both approaches in Caenorhabditis nematodes. First, by combining golden gate cloning and TALEN technology, we can induce frameshifting mutations in any gene. Second, by combining this approach with bioinformatics we can predict and create the resources needed for forward genetic analysis in species like Caenorhabditis briggsae. Although developing genetic model organisms used to require years to isolate marker mutations, balancers, and tools, with TALENs, these reagents can now be produced in months. Furthermore, the analysis of nonsense mutants in related model organisms allows a directed approach for making these markers and tools. When used together, these methods could simplify the adaptation of other organisms for forward and reverse genetics.
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