Optimized DNA extraction and metagenomic sequencing of airborne microbial communities

This protocol enables collection of airborne particulate matter; and after sample pretreatment, it allows sufficient quantities of microbial DNA to be extracted and prepared for downstream applications such as metagenomic sequencing. Metagenomic sequencing has been widely used for the study of micro...

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Veröffentlicht in:Nature protocols 2015-05, Vol.10 (5), p.768-779
Hauptverfasser: Jiang, Wenjun, Liang, Peng, Wang, Buying, Fang, Jianhuo, Lang, Jidong, Tian, Geng, Jiang, Jingkun, Zhu, Ting F
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container_issue 5
container_start_page 768
container_title Nature protocols
container_volume 10
creator Jiang, Wenjun
Liang, Peng
Wang, Buying
Fang, Jianhuo
Lang, Jidong
Tian, Geng
Jiang, Jingkun
Zhu, Ting F
description This protocol enables collection of airborne particulate matter; and after sample pretreatment, it allows sufficient quantities of microbial DNA to be extracted and prepared for downstream applications such as metagenomic sequencing. Metagenomic sequencing has been widely used for the study of microbial communities from various environments such as soil, ocean, sediment and fresh water. Nonetheless, metagenomic sequencing of microbial communities in the air remains technically challenging, partly owing to the limited mass of collectable atmospheric particulate matter and the low biological content it contains. Here we present an optimized protocol for extracting up to tens of nanograms of airborne microbial genomic DNA from collected particulate matter. With an improved sequencing library preparation protocol, this quantity is sufficient for downstream applications, such as metagenomic sequencing for sampling various genes from the airborne microbial community. The described protocol takes ∼12 h of bench time over 2–3 d, and it can be performed with standard molecular biology equipment in the laboratory. A modified version of this protocol may also be used for genomic DNA extraction from other environmental samples of limited mass or low biological content.
doi_str_mv 10.1038/nprot.2015.046
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subjects 631/1647/2234
631/1647/514/1948
631/326/2565/2142
631/61/252/171/1281
Air Microbiology
Airborne particulates
Analytical Chemistry
Biochemistry - instrumentation
Biochemistry - methods
Biological Techniques
China
Computational Biology/Bioinformatics
Deoxyribonucleic acid
DNA
DNA - isolation & purification
DNA sequencing
Environmental Monitoring - instrumentation
Environmental Monitoring - methods
Equipment Design
Fresh water
Gene sequencing
Genetic aspects
Genomics
Life Sciences
Metagenome
Metagenomics
Methods
Microarrays
Microbial activity
Microbial colonies
Microbial Consortia - genetics
Microbiomes
Microorganisms
Molecular biology
Nucleotide sequencing
Organic Chemistry
Particulate emissions
Particulate Matter
protocol
Quality Control
Sequence Analysis, DNA
Soil water
Workflow
title Optimized DNA extraction and metagenomic sequencing of airborne microbial communities
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