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. Author manuscript; available in PMC: 2014 Oct 24.
Published in final edited form as: Nat Neurosci. 2014 Aug 31;17(10):1418–1428. doi: 10.1038/nn.3801

Figure 1. Unsupervised hierarchical clustering of cis-eQTL signals and related expression data.

Figure 1

(a) Heat plot and dendrograms based on unsupervised hierarchical clustering of absolute z scores of all cis-eQTL signals across all ten brain regions. (b) Heat plot and unsupervised hierarchical clustering of mean expression in a brain region for the equivalent expression data (expression IDs targeted by all cis-eQTL signals identified). Column dendrograms for the two panels were very similar, so b has been ordered according to the column dendrogram in a. The row dendrogram in b was indistinct, so it has not been colored by clade. SNIG, substantia nigra; PUTM, putamen (at the level of the anterior commissure); MEDU, the inferior olivary nucleus (sub-dissected from the medulla); THAL, thalamus (at the level of the lateral geniculate nucleus); OCTX, occipital cortex; HIPP, hippocampus; FCTX, frontal cortex; TCTX, temporal cortex; WHMT, intralobular white matter; CRBL, cerebellar cortex.