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  2. 适应性进化使得人类能够从极端环境污染中得到拯救.
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  2. 适应性进化使得人类能够从极端环境污染中得到拯救.

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适应性进化使得人类能够从极端环境污染中得到拯救.

Elias M Oziolor1,2,3, Noah M Reid4, Sivan Yair2

  • 1Department of Environmental Science, Center for Reservoir and Aquatic Systems Research (CRASR), and Institute for Biomedical Studies, Baylor University, Waco, TX 76798, USA.

Science (New York, N.Y.)
|May 4, 2019

在PubMed 上查看摘要

概括
此摘要是机器生成的。

通过基因变化,海湾鱼迅速发展出耐毒性,其中一个关键的适应性涉及酸受体 (AHR) 途径. 跨物种基因流,可能是人类协助的,为生存提供了关键的适应性变异.

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科学领域:

  • 环境科学
  • 进化生物学
  • 遗传学

背景情况:

  • 环境变化可以限制进化救援所需的基因变异.
  • 在污染地区的海湾鱼迅速适应毒素.
  • 基碳化合物受体 (AHR) 信号在毒性反应中至关重要.

研究的目的:

  • 研究海湾鱼对毒素耐药性的遗传基础.
  • 确定污染水平,AHR信号和电阻之间的关系.
  • 确定使快速适应的遗传变异来源.

主要方法:

  • 通过污染梯度量化有毒剂的耐受性.
  • 评估了AHR信号的诱导性.
  • 在最近的选择下分析基因组位置.
  • 检查了相关物种的内进.

主要成果:

  • 毒性耐药性与污染水平相比例,与AHR信号诱导性相反.
  • 具有强大的选择特征的位点含有调节AHR信号的基因.
  • 两种关键位置最近从大西洋鱼中入.
  • 在AHR基因的删除赋予了显著的适应优势 (s = 0. 8).

结论:

  • 最近的自适应性进攻, 可能是人为介导,
  • 在快速的环境变化中,物种间的基因流可以成为适应性变异的重要来源.
  • AHR路径是适应污染的一个主要目标.