图1. 19种被子植物基因家族大小分布
(A) 系统发育树代表19种被子植物的进化关系; (B) 直系同源基因家族大小; (C) orphan基因家族大小。白、灰、黑分别代表单拷贝、两拷贝和多拷贝基因所占比例。

Figure 1. Gene family size distribution of 19 angiosperm species
(A) Phylogenetic tree showing the relationships between the 19 angiosperm species used in this study; (B) Homologous gene family sizes; (C) Gene family sizes of orphan genes. The colors indicate the proportions of genes, white for singletons, grey for two-genes and black for multigenes.