Fig. 3

PCA plot of all the immune-related genes. The X and Y-axis represent the first two principle components. The percentage value in the bracket represents the percentage of variance explained by that principle component. a PCA plot of immune-related genes for the jejunum (black dots) and ileum (red dots). b PCA plot of immune-related genes for the jejunum at different ages. c PCA plot of immune-related genes for the ileum at different ages