Influence of preservation environments on salivary microbiota profiles in 16S rRNA sequencing - Influence of preservation environments on salivary microbiota profiles in 16S rRNA sequencing

An almost perfect correlation was shown between the immediate extraction and the -15 degree storage group for relative abundance at the genus and operational taxonomic unit levels. The intraindividual UniFrac distances among storage methods were significantly shorter than those of interindividual distances. None of the amount of extracted DNA, the alfa-diversity indices, or the relative abundance at the phylum/genus/operational taxonomic unit level differed among storage methods.