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Background and Environment Affect Phenotype02:27

Background and Environment Affect Phenotype

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Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
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通过使用简单的空间解析模型生态系统,将甲类植物表型与基因型联系起来.

Delaney G Beals1, Aaron W Puri1

  • 1Department of Chemistry and the Henry Eyring Center for Cell and Genome Science, University of Utah, Salt Lake City, UT 84112, United States.

The ISME journal
|April 16, 2024
PubMed
概括

一个新的生态系统模型揭示了标准实验室培养物中缺少的细菌表型. 这个系统将细菌基因与甲氧化细菌 (甲营养菌) 中的多糖带形成联系起来.

科学领域:

  • 微生物学 微生物学
  • 环境科学 环境科学
  • 遗传学 遗传学 是一个

背景情况:

  • 在没有环境背景的情况下,将细菌基因与特征联系起来很难.
  • 实验室模型生态系统可以比浮游生物培养更好地模仿自然条件.
  • 有氧甲氧化细菌 (甲营养菌) 在甲氧梯度中壮成长.

研究的目的:

  • 开发一个具有成本效益的模型生态系统来研究甲类植物.
  • 在模拟的自然条件下,研究基因型-表型链接在methanotrophs.
  • 在受控环境中识别负责特定细菌行为的基因.

主要方法:

  • 构建了一个实验室模型生态系统,模拟甲-氧相对梯度.
  • 培养的 梅西洛蒙纳斯 sp. 模型生态系统中的LW13菌株.
  • 分析了转录基因数据,并创建了淘汰菌株以识别关键基因.
  • 模型生态系统与标准浮游生物培养的比较生长.

主要成果:

  • 甲类植物在甲-氧接口上形成了明显的多糖带.
  • 带状的形成是由于多糖的产量增加,而不是细胞密度.
  • 鉴定了在带中高调的特定基因,对于带形成至关重要,但不是标准生长.
关键词:
甲是一种甲.作为一个甲类植物.模型生态系统模型现象型异质性的异质性

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  • 不同的甲类型表现出独特的带特征.

    • 结论:

    • 模型生态系统成功地模仿了自然环境,揭示了以前未被观察到的细菌表型.
    • 这种方法有效地将特定的基因与环境适应联系起来,例如多糖带的形成.
    • 在这个模型系统中观察到的表型可能会在标准的实验室培养技术中错过.