Fig. 2From: Whole-transcriptome changes in gene expression accompany aging of sensory neurons in Aplysia californicaPrincipal component analysis (PCA) in M and AII PVC neurons. Gene expression profiles of M and AII PVC neurons plotted against the first two principal components, with clustering indicating expression profiles were most similar within each age group. One M animal exhibited an expression profile that did not clearly belong to either age group (circled). Light red and blue shading represent 95% confidence interval for M and AII, respectivelyBack to article page