Fig. 4
From: Optimisation of sample storage and DNA extraction for human gut microbiota studies
Stability of faecal microbiota under different storage conditions: immediate DNA extraction (Control), at room temperature (RT), + 4 °C, -20 °C new aliquots, repeated freezing and thawing (-20 °C), and up to three-week period represented by (A) non-metric multidimensional scaling, where ellipses indicate 95 % confidence, (B) Shannon’s alpha diversity, and (C) Sørensen dissimilarity index for different tested subjects (S1–S5)