Fig. 1.

(A) Hierarchical clustering and heat map and (B) principal component analysis showing clear separation between gene expression of control and xanthophyll treated samples. Red dots represent control samples; blue dots represent xanthophyll treated samples. (C) Volcano plot maps gene expression based on fold change between control and lutein/zeaxanthin treated samples and corresponding p-values. Green dots represent genes identified as having statistically significantly large fold change: 47 upregulated and 176 downregulated.