相关实验视频
Updated: Jul 23, 2025

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Pyrosequencing for Microbial Identification and Characterization
Published on: August 22, 2013
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一种使用合成内部标准的定量测序方法,包括功能性和遗传学标记基因.
Kazuyoshi Koike1, Ryo Honda2, Masataka Aoki3
1Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Japan.
Environmental microbiology reports
|July 19, 2023
概括
合成的内部标准基因 (ISG) 已被开发用于功能标记器在amplicon测序. 这种方法准确量化了环境样本中的微生物基因,包括16SrRNA,pmoA和amoA.
科学领域:
- 微生物学 微生物学
- 分子生物学分子生物学
- 环境科学 环境科学
背景情况:
- 合成内部标准基因 (ISG) 通常用于安普利康测序中的家族遗传标记.
- 它们对功能标记的应用,对于理解微生物过程至关重要,是有限的.
研究的目的:
- 开发和验证ISG用于量化功能基因 (pmoA,amoA) 与16SrRNA基因一起.
- 评估ISG-spiking对环境样本中微生物种群的绝对量化准确度.
主要方法:
- 为16S rRNA,pmoA和amoA基因开发ISG.
- 将ISG入模拟和环境样本中.
- 执行安普利康序列和定量实时PCR (qPCR).
- 分析测序数据以实现绝对基因量化.
主要成果:
- 基于ISG的量化与模拟社区的16S rRNA和pmoA基因的qPCR密切匹配.
- 观察到amoA基因的轻微低估,可能是由于初始覆盖.
- 该方法成功地应用于环境污泥样本,揭示了丰富的Methylocystis种群.
结论:
- ISG增量是评估测序数据处理和准确量化功能基因标记物的可行方法.
- 这种方法提高了微生物社区分析的可靠性,特别是在功能性基因丰度方面.
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