评估尿液量和宿主耗尽方法,以使可定基因组的基因组解析元基因组学成为可能
Zachary J Lewis1, Angela Scott1, Christopher Madden1
1Department of Veterinary Preventive Medicine, The Ohio State University.
Research square
|August 16, 2024
概括
优化尿样体积和宿主DNA枯竭对于准确的骨基因组分析至关重要. DNA微生物组方法增强了微生物多样性和基因组恢复,揭示了尿液微生物中的环境化学降解潜力.
科学领域:
- 微生物学 微生物学
- 基因组学就是基因组学.
- 环境科学 环境科学
背景情况:
- 肠道微生物群影响宿主健康,而尿道微生物群 (尿道微生物群) 可能也起着类似的作用.
- 由于尿液中微生物生物质量较低,宿主DNA较高,因此对dodaptome的表征具有挑战性.
- 狗作为一个相关的大型动物模型来研究人类体内结构.
研究的目的:
- 通过评估尿样体积和宿主DNA枯竭技术,优化多基因组表征的方法.
- 评估不同DNA提取方法对多基因组概况的影响.
- 通过基因组解析的基因组学来探索基因组的功能潜力.
主要方法:
- 从七只健康的狗身上采集了尿液样本,并将其分成部分.
- 用六种不同的DNA提取方法处理样本,其中一些样本添加了宿主DNA.
- 进行了16S rRNA基因和中枪元基因组测序,随后进行了元基因组组装基因组 (MAG) 构造.
主要成果:
- 尿样体积为3.0毫升,提供了最一致的多巴基因组概况.
- DNA微生物组提取方法最大限度地提高了微生物多样性和MAG恢复,同时有效地耗尽了宿主DNA.
- 个体狗的变化,而不是提取方法,主要是驱动微生物组成的差异.
结论:
- 这项研究提供了优化一些关于样本量和宿主DNA枯竭的研究的基本准则.
- 这些发现突出了尿液微生物降解环境化学物质的潜力,这些化学物质是通过基因组解析的基因组学识别出来的.
- 这项工作为未来对瘤在健康和疾病中的作用的研究奠定了基础.
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