Figure 4.
Observed vs. expected Ki's in mangroves and their non-mangrove relatives. The expected Ki's based on the universal index [54] across primates, rodents, yeast and Drosophila are shown in each panel (the line of blue dots; the shade covers one standard deviation on each side). x-axis: the ranking of i's from 1 to 75. y-axis: observed Ki and expected Ki. The observed Ki is scaled such that Ka/Ks = 1, as the universal index is scaled. (a–c) In non-mangroves, as well as in Arabidopsis [A. lyrata – A. halleri; see the inset of panel (a)], the observed Ki's agree well with the expected values. (d–f) In mangroves, the observed Ki's deviate strongly from the expected Ki's (see Table 2 for details).