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A robust ambient temperature collection and stabilization strategy: Enabling worldwide functional studies of the human microbiome

Ericka L. Anderson,Weizhong Li,Niels Klitgord,S. Highlander,Mark Dayrit,V. Seguritan,Shibu Yooseph,W. Biggs,J. Venter,Karen E. Nelson,Marcus B. Jones

Published 2016 in Scientific Reports

ABSTRACT

As reports on possible associations between microbes and the host increase in number, more meaningful interpretations of this information require an ability to compare data sets across studies. This is dependent upon standardization of workflows to ensure comparability both within and between studies. Here we propose the standard use of an alternate collection and stabilization method that would facilitate such comparisons. The DNA Genotek OMNIgene∙Gut Stool Microbiome Kit was compared to the currently accepted community standard of freezing to store human stool samples prior to whole genome sequencing (WGS) for microbiome studies. This stabilization and collection device allows for ambient temperature storage, automation and ease of shipping/transfer of samples. The device permitted the same data reproducibility as with frozen samples and yielded higher recovery of nucleic acids. Collection and stabilization of stool microbiome samples with the DNA Genotek collection device, combined with our extraction and WGS, provides a robust, reproducible workflow that enables standardized global collection, storage and analysis of stool for microbiome studies.

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