优化从养猪场废水中提取DNA的方法,以使用元基因组测序来检测病原体
Manavi Muralidhar1, Muhammad Noman Naseem1,2, Jose Ramon Botella Mesa3
1Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD, 4067, Australia.
Microbial genomics
|October 24, 2025
概括
使用元基因组分析监测养猪场废水有助于早期发现疾病. 一个优化的QIAGEN PowerFecal® Pro协议有效地从废水中提取高质量的DNA,用于病原体监测.
科学领域:
- 环境微生物学环境微生物学
- 兽医诊断 兽医诊断 兽医诊断 兽医诊断
- 基因组监测是指基因组的监测.
背景情况:
- 废水监测在COVID-19大流行期间被证明是有效的,为社区疾病监测提供了宝贵的工具.
- 猪场废水的监测对于早期检测那些由于猪群迅速传播而造成重大经济损失的疾病至关重要.
- 从复杂的环境样本中提取高质量的DNA,如猪场废水,仍然是准确检测病原体的重大挑战.
研究的目的:
- 确定和优化最有效的DNA提取方法,从猪场废水中获得高质量和数量的DNA.
- 评估不同DNA提取协议对于病原体检测下游元基因组应用的适用性.
- 通过废水分析,建立一种可靠的方法来监测猪场种群的疾病.
主要方法:
- 在猪场废水样本上测试了六种DNA提取协议,评估了产量和DNA质量.
- 进一步评估了前三种表现最好的方法,使用已知猪病原体的尖样本进行了进一步评估.
- 提取的DNA使用牛津纳米孔技术 (ONT) 进行了测序,并使用kraken2和内部数据库分析数据.
主要成果:
- 凯恩QIAamp® PowerFecal® Pro,凯恩DNeasy® PowerLyzer® PowerSoil®和马切雷-纳格尔NucleoSpin® Soil套件是表现最好的提取方法.
- 优化的QIAGEN PowerFecal® Pro协议证明了从猪场废水中提取DNA的卓越适用性和可靠性.
- 甲基因组分析证实了优化协议在复杂样本的病原体鉴定中的有效性.
结论:
- 优化DNA提取对于在复杂的环境样本 (如猪场废水) 中进行有效的疾病监测至关重要.
- QIAGEN PowerFecal® Pro协议是获得高质量的DNA的可靠方法,用于在猪群中检测甲基因组病原体.
- 这项研究促进了转基因监测在畜牧业早期疾病检测和预防的实际应用.
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