Fig. 3: Genome-wide analysis to show the contrasting diversification of functional protein domains across land plants.
From: A genome for gnetophytes and early evolution of seed plants

a, PCA analysis of the occurrence and number of pfam domains in multiple orthologous genes across land plants. Plotting PC1 against PC2 reveals that monocots and eudicots cluster together, as do conifers with G. biloba; the remaining species are separate from these clusters. b, Heatmaps reveal the ancestral coding repertories shared by S. moellendorffii and G. montanum. Different patterns of expansion and contraction of the pfam domains are seen for other gymnosperms and angiosperms (see Supplementary Table 7 for species name list and corresponding abbreviations).