Principal component analysis of 2382 genes from the normal bronchial airway transcriptome across 11 tissue datasets. Principal component analysis (PCA) of the expression of 2382 genes from the never-smoker bronchial-airway transcriptome  in samples from 11 different tissue datasets. Bronchial and nasal epithelial samples group together along the first and second principal components (representing 66% and 12% of the variance in gene expression respectively) based on the expression of these genes. Tissue types are color-coded.
Sridhar et al. BMC Genomics 2008 9:259 doi:10.1186/1471-2164-9-259