Fig. 2

Statistical analysis of high-molecular-mass proteins present in chloroplast proteomes. A Principal component analysis (PCoA) of high-molecular-mass proteins in chloroplast proteomes. High-molecular-weight proteins in the chloroplast proteome of different taxonomic groups indicate that monocots, eudicots, and algae are independent, suggesting a lack of commonality in the high-molecular mass chloroplast proteins in these taxonomic groups. B Pearson’s correlation analysis (p < 0.05) values for high-molecular-mass proteins in the chloroplast proteome of different taxonomic groups. C Heat map of the Pearson’s coefficients of high-molecular-mass proteins. A high correlation between nymphaeales and bryophytes is evident, while several others are negatively correlated