Table 2.
Statistics for pairwise beta dispersion and PERMANOVA when using different dissimilarity measures on weekly microbiome data.
| Beta dispersion | Bray-curtis | Unweighted unifrac | Weighted unifrac | |
|---|---|---|---|---|
| Day 03–07 | Day08–14 | p = 0.0061142 (**) | p = 0.00014712 (***) | p = 9.6914e−05 (***) |
| Day15–24 | n.s. | p = 0.010418 (*) | p = 2.5203e−09 (***) | |
| Day25–35 | p = 0.042066 (*) | p = 0.00015112 (***) | p = 3.5789e−12 (***) | |
| Day08–14 | Day15–24 | p = 0.00077017 (***) | n.s. | p = 0.019953 (*) |
| Day25–35 | n.s. | n.s. | p = 0.0011717 (**) | |
| Day15–24 | Day25–35 | p = 0.0075651 (**) | p = 0.020128 * | n.s. |
| PERMANOVA | ||||
| Groups | R2 = 0.16763 (p = 0.001) (***) | R2 = 0.06048 (p = 0.001) (***) | R2 = 0.17577 (p = 0.001) (***) | |
| BW_Mean | R2 = 0.11721 (p = 0.001) (***) | R2 = 0.03964 (p = 0.001) (***) | R2 = 0.08723 (p = 0.001) (***) | |
| FI | R2 = 0.11856 (p = 0.001) (***) | R2 = 0.04069 (p = 0.001) (***) | R2 = 0.09301 (p = 0.001) (***) | |
| FCR | R2 = 0.1086 (p = 0.001) (***) | R2 = 0.03842 (p = 0.001) (***) | R2 = 0.11787 (p = 0.001) (***) | |
| Gain | R2 = 0.11886 (p = 0.001) (***) | R2 = 0.04146 (p = 0.001) (***) | R2 = 0.0998 (p = 0.001) (***) | |
Asterisks denote a statistically significant difference (
*
p < 0.05,
**
p < 0.01,
***
p < 0.001).
In beta dispersion analysis, the pair-wise differences in distances from group center/mean were subjected to ANOVA after performing Principle Coordinate Analysis, and if significant (p ≤ 0.05) the values are shown. In PERMANOVA analysis, R2 represents the proportion of variability explained, for example, using “Groups” and “Bray-Curtis” dissimilarity, the weeks explain 16.8% variability in microbial community structure.