全基因组测序方法用于分类分析和废水质量的评估
Shalini Behl1, Vinay Kusuma1, Thyago Cardoso1
1Omics Centre of Excellence, M42 Health, Abu Dhabi, United Arab Emirates.
Journal of microbiological methods
|October 7, 2024
概括
废水基因组监测可以有效地检测微生物群落. 测序到3Gb的吞吐量捕获了近95%的物种,优化了公共卫生监测.
科学领域:
- 环境微生物学环境微生物学
- 转基因组学是指转基因组学.
- 生物信息学是一种生物信息学.
背景情况:
- 基于废水的基因组监测对公共卫生至关重要,有助于检测新兴变种和流行病爆发.
- 环境基因组监测的挑战包括采样变异性,不完全覆盖,遗传碎片化,退化和复杂的数据分析.
- 高通量测序和计算能力的进步提高了基因组数据在废水中检测微生物的准确性和实用性.
研究的目的:
- 来自阿拉伯联合长国阿布扎比的废水样本中的微生物动力学.
- 确定必要的最佳测序吞吐量,以识别与流行病学监测相关的生物指标种群.
- 评估不同测序深度对物种检测和社区组成分析的影响.
主要方法:
- 废水样本从阿布扎比的各个地点采集,采用标准化采样技术.
- 为了准确的微生物识别,编制了大约2.7万种已知物种的综合参考数据库.
- 进行了元基因组测序,并分析了数据以识别和量化样本中存在的微生物物种.
主要成果:
- 大约15%的测序数据与已知的物种相匹配,而85%仍未分类.
- 尽管有大量的未分类数据,但在每个样本中检测到超过2000种超过30个族群的物种.
- 测序到3Gb的吞吐量确定了近95%的所有物种,在这个深度之外检测到的额外物种很少.
结论:
- 3Gb的测序吞吐量足以捕获废水样本中的大多数微生物物种.
- 虽然更高的吞吐量 (例如,10 Gb) 识别了更多的稀少物种,但它并没有显著改变整个社区的组成或多样性.
- 优化测序深度是平衡全面微生物检测与环境监测成本效益的关键.
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