Additional file 4.

Principal component analysis (PCA) of compositional bias. Contains Figure S8 showing the results of a PCA for amino acid distributions from concatenated sequences in all 21 species considered in our phylogenomic analysis. (PDF 112 kb)

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JimĂ©nez-Guri et al. BMC Genomics 2013 14:123   doi:10.1186/1471-2164-14-123