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Storage media and not extraction method has the biggest impact on recovery of bacteria from the oral microbiome

ABSTRACT: Storage media and not extraction method has the biggest impact on recovery of bacteria from the oral microbiome

PROVIDER: PRJEB34486 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	ERR3528900_1.fastq.gz	Fastqsanger.gz
	ERR3528900_2.fastq.gz	Fastqsanger.gz
	ERR3528910_1.fastq.gz	Fastqsanger.gz
	ERR3528910_2.fastq.gz	Fastqsanger.gz
	ERR3528920_1.fastq.gz	Fastqsanger.gz

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Storage media and not extraction method has the biggest impact on recovery of bacteria from the oral microbiome.

Project description:Next Generation sequencing has greatly progressed the exploration of the oral microbiome's role in dental diseases, however, there has been little focus on the effect of sample storage conditions and their interaction with DNA extraction method. Dental plaque samples collected from 20 healthy participants were pooled and stored in either 75% ethanol or Bead solution for up to 6-months at -80?°C, prior to DNA extraction with either QIAamp (non-bead beating) or PowerSoil (bead-beating) kit, followed by Illumina sequencing of 16S rRNA gene. We found that storage media and not extraction method had the biggest influence on the diversity and abundance of the oral microbiota recovered. Samples stored in Bead solution, independent of the extraction kit, retrieved higher diversity (PowerSoil p?=?1.64E-07, QIAamp p?=?0.0085) and had dissimilar overall ecologies as indicated by lower level of shared diversity (PowerSoil p?=?0.0000237, QIAamp p?=?0.0088). Comparatively, samples stored in Bead solution and extracted with PowerSoil recovered a higher abundance of Streptococcus species. These data indicate that Bead solution can preserve the oral microbiome in dental plaque reliably, for periods of up to 6-months at -80?°C, and is compatible, with either a bead-beating or non-bead beating DNA extraction method.

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