Dendrograms from hierarchical clustering

Copyright information:Taken from "Primary and secondary transcriptional effects in the developing human Down syndrome brain and heart"Genome Biology 2005;6(13):R107-R107.Published online 16 Dec 2005PMCID:PMC1414106.Copyright © 2005 Mao et al.; licensee BioMed Central Ltd. Dendrograms were based on () chromosome 21 genes and () non-chromosome 21 genes in the 25 samples, using Euclidean distance and average linkage. Branch lengths represent dissimilarity. Samples were of two types (TS21, red; euploid, dark blue) and four sources (astrocyte, green; cerebellum, light blue; cerebrum, gray; heart, brown).