Fig. 1From: The influence of molecular markers and methods on inferring the phylogenetic relationships between the representatives of the Arini (parrots, Psittaciformes), determined on the basis of their complete mitochondrial genomesCorrespondence analysis based on the nucleotide composition of tRNA (a) and protein-coding genes (b). The first (X axis) and the second (Y axis) dimensions explain 67.0% and 26.9% variance for a panel, and 97.1% and 1.9% variance for b panel, respectivelyBack to article page