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Fig. 3 | BMC Genomics

Fig. 3

From: Comparative gene expression profiling between optic nerve and spinal cord injury in Xenopus laevis reveals a core set of genes inherent in successful regeneration of vertebrate central nervous system axons

Fig. 3

Eigenvector representation of the Principal Component Analyses (PCA) of gene expression profiles. Eigenvectors depict relative degrees of similarity among data sets, as indicated. Black points represent individual genes plotted against the principal axes of similarity (PC1, PC2). a, PCA of all 17 experimental conditions and controls. b, PCA of SCI hindbrain samples and their unoperated controls. c, PCA of ONC operated eye expression profiles, as well as those of their paired, contralateral unoperated control eyes and eyes of uninjured animals (surgically naive). Abbreviations: Cntrl, control hindbrain; Juv, juvenile (1–3 month post-metamorphic) frog; ONC, optic nerve crush; PC1, principal component axis 1; PC2, Principal Component axis 2; SCI, spinal cord injured; Tx, spinal cord transection; Unop, unoperated eye, contralateral to the ONC; Wk, week. Additional_File5_PCA_Scatterplot.pdf shows PCA scatterplots

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BMC Genomics

ISSN: 1471-2164

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