Fig. 3.

Fig. 3. Microbial member differences between groups and identification of microbial biomarker. (A) Krona taxonomic map of phylum-level microbes at the post-treatment stage. (B) PCA loadings plot and scores plot of genus-level microbes. Each point of the figure represents a genus-level microbe, and the horizontal and vertical coordinates of the point can be thought of as the magnitude of the microbe contribution to the samplés variance in these two dimensions, respectively. Percentages in parentheses on each of the two axes are the ratio of the difference in species abundance composition to the total difference for all samples in that dimension. The ratio of physical unit lengths of the two axes is set by default to be the same as their explanatory ratio, so that the contribution of a microbe to the difference in composition between sample groups is proportional to the sum of its distances to the axes, and is indicated by a color from yellow to red indicating its value from small to large. Each dot in the scores plot represents a sample, with different colored dots indicating different samples (groups).

© J. Microbiol. Biotechnol.