Our understanding of biological processes in humans is often based on examination of analogous processes in other organisms. The nematode worm Caenorhabditis elegans has been a particularly valuable model, leading to Nobel prize winning discoveries in development and genetics. Until recently, however, the worm has not been widely used as a model to study transcription due to the lack of a comprehensive catalogue of its RNA transcripts. A recent study by Chen et al. uses next-generation sequencing to address this issue, mapping the transcription initiation sites in C. elegans and finding many unexpected similarities between the transcription of enhancers and promoters in the worm and mammalian genomes. As well as providing a valuable resource for researchers in the C. elegans community, these findings raise the possibility of using the worm as a model to investigate some key, current questions about transcriptional regulation that remain technically challenging in more complex organisms.

译文

我们对人类生物过程的理解通常基于对其他生物中类似过程的检查。线虫线虫秀丽隐杆线虫是一种特别有价值的模型,导致了诺贝尔奖在发育和遗传学方面的发现。然而,直到最近,由于缺乏其RNA转录本的全面目录,该蠕虫尚未被广泛用作研究转录的模型。Chen等人最近的一项研究。使用下一代测序来解决这个问题,绘制了秀丽隐杆线虫中的转录起始位点,并在蠕虫和哺乳动物基因组中的增强子和启动子的转录之间发现了许多意想不到的相似之处。除了为秀丽隐杆线虫社区的研究人员提供宝贵的资源外,这些发现还提出了使用蠕虫作为模型来研究有关转录调控的一些关键的当前问题的可能性,这些问题在技术上仍然具有挑战性更复杂的生物体。

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