Fig. 3
From: Genes associated with hot defensive bee ball in the Japanese honeybee, Apis cerana japonica
PCA plot for the gene expression patterns in A. cerana japonica. Each dot indicates the gene expression profile of a single bee for the brain, fat body, and flight muscles. The horizontal and vertical axes represent PC1 and PC2, respectively. Numbers in the parentheses show the proportion of the variance explained by PC1 and PC2. The shapes of the dots represent the organs (circle = brain; triangle = fat body; square = flight muscle) and the colors indicate the experimental treatments (green = “balling”; blue = “heated”; orange = “control”)