Bacterial Colonization in the Airways and Intestines of Twin and Singleton Preterm Neonates: A Single-Center Study

Figure 3

In each level of the stacked bar diagram, the dominant phylum and genus levels of bacteria are displayed ((a, b): the horizontal axis shows sample grouping, and the vertical axis shows relative abundance. See supplementary materials for order, family, and species data). Bacterial colony composition is clustered according to the relative abundance of species at phylum and genus levels in the heat maps ((c, d): rows represent species, columns represent sample groups, and gradient colors from blue to red represent variations in abundance from low to high. The heat map was converted by z values, so boxes can only be compared horizontally). The phylum and genus levels were analyzed for differences; the abscissa in the figure represents the different species (ranging from left to right according to the abundance), and the ordinate represents the relative abundance (e, f).

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