Fig. 4From: ycf1-ndhF genes, the most promising plastid genomic barcode, sheds light on phylogeny at low taxonomic levels in Prunus persicaSchematic representation the principal component analysis (PCA) of 22 species of Prunus and 3 species of Pyrus pyrifolia, Pyrus spinosa, and Malus prunifolia as outgroup, while PC1and PC2 refer to the first and second principal component, respectivelyBack to article page