Figure 8

Multivariate comparison of glycoside hydrolase families detected in the gut transcriptomes of herbivorous insects. Principal components analysis was conducted to plot the abundance of each glycoside hydrolase family detected in the gut transcriptomes of wood-feeding insects. PCA values were plotted in sample space and variables are displayed as vectors on the PCA biplot. PCA axis 1 and PCA axis 2 explain 26.2% and 18.1% of the variation in the data, respectively. Monte Carlo Permutation Procedure (n = 1000 iterations): p < 0.0001 for PCA 1 and PCA2. No major clustering of insects feeding on similar food sources was detected.