Figure 1From: Chronic parasitization by Nosema microsporidia causes global expression changes in core nutritional, metabolic and behavioral pathways in honey bee workers (Apis mellifera)Principal components analysis. A) Analysis of expression patterns in midgut tissue at 1 and 2Â days pi with N. apis. B) Analysis of expression patterns in fat body tissue at 2 and 7Â days pi with N. apis. For each analysis, three PCs were identified, corresponding to age, infection status, and an age x infection interaction. The percentage of variation in transcript expression patterns explained by each PC is shown in the x-axis labels.Back to article page