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Dense and pleiotropic regulatory information in a developmental enhancer

机译:发育增强剂中的密集和百可规范信息

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摘要

Changes in gene regulation underlie much of phenotypic evolution~(1). However, our understanding of the potential for regulatory evolution is biased, because most evidence comes from either natural variation or limited experimental perturbations~(2). Using an automated robotics pipeline, we surveyed an unbiased mutation library for a developmental enhancer in Drosophila melanogaster. We found that almost all mutations altered gene expression and that parameters of gene expression-levels, location, and state-were convolved. The widespread pleiotropic effects of most mutations may constrain the evolvability of developmental enhancers. Consistent with these observations, comparisons of diverse Drosophila larvae revealed apparent biases in the phenotypes influenced by the enhancer. Developmental enhancers may encode a higher density of regulatory information than has been appreciated previously, imposing constraints on regulatory evolution.
机译:基因调节的变化是表型进化的大部分〜(1)。然而,我们对监管进化潜力的理解偏见,因为大多数证据来自自然变异或有限的实验扰动〜(2)。使用自动化机器人管道,我们调查了德罗托洛拉梅拉洛克的发育增强剂的无偏异突变库。我们发现几乎所有突变都改变了基因表达,并且基因表达水平,位置和状态的参数是卷积的。大多数突变的广泛脂肪磷酸效应可能会限制发育增强剂的不溶解性。与这些观察结果一致,不同的果蝇幼虫的比较显示出受增强剂影响的表型的表观偏差。发育增强剂可以编码比以前得到的监管信息更高的监管信息密度,对监管演化产生限制。

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  • 来源
    《Nature》 |2020年第7833期|235-239|共5页
  • 作者单位

    European Molecular Biology Laboratory| EMBL and Faculty of Biosciences Heidelberg University;

    Janelia Research Campus;

    European Molecular Biology Laboratory;

    European Molecular Biology Laboratory;

    European Molecular Biology Laboratory;

    Janelia Research Campus;

    Mortimer B. Zuckerman Mind Brain Behavior Institute Columbia University;

    European Molecular Biology Laboratory;

    Mortimer B. Zuckerman Mind Brain Behavior Institute Columbia University;

    Janelia Research Campus;

    European Molecular Biology Laboratory;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
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