Fig. 4

Number of genes and abundance clustering heat map at the genus level. a Heat map of the annotated unigene statistics. Sample names are given on the horizontal axis, and species’ information on the vertical axis; different colors represent the number of unigenes. b Relative abundance clustering heat map at the genus level. Sample information is given on the horizontal axis; the vertical axis gives the species’ information. The cluster tree on the left of the figure is the species cluster tree; the value corresponding to the middle heat map is the Z-value obtained after the relative abundance of each species row is standardized