Fig. 6
From: Expectations of duplicate gene retention under the gene duplicability hypothesis
Comparison of the expected pratio values under the a gene duplicability hypothesis and b-d mutational opportunity hypothesis with different values of βswitch_mo (0.25, 0.50, 0.75 respectively), which is the proportion of the Alt_func category that switches to the Non category during t2 because they cannot neofunctionalize or subfunctionalize again. These were shown for High Alt_func, No Dos, and Low Non (75% Alt_func, 0% Dos, 25% Non), Low Alt_func, No Dos, and High Non (25% Alt_func, 0% Dos, 75% Non), Medium Alt_func, Dos and Non (30% Alt_func, 20% Dos, 50% Non), and No Alt_func, Half Dos and Half Non (0% Alt_func, 50% Dos, 50% Non). This shows that genomes with genes in the Alt_func category have smaller pratios for those that are more likely to lose their ability to be retained again in t2. Genomes without genes in the Alt_func do not change between the gene duplicability hypothesis and the mutational opportunity hypothesis. Genomes with extremely large Alt_func categories and are extremely unlikely to be retained in t2 under this mechanism have pratios exclusively less than one, and with a surface topology that changes the most from the gene duplicability hypothesis