Fig. 2: The expansion and contraction of gene families.
From: The Phoebe genome sheds light on the evolution of magnoliids

The green numbers are the numbers of expanded gene families, and the red numbers are the numbers of contracted gene families. The blue portions of the pie charts represent the gene families whose copy numbers are constant. The orange portions of the pie charts represent the proportion of 11,968 gene families found in the most recent common ancestor (MRCA) that have expanded or contracted during recent differentiation