Figure 5.

(A) Distribution of the absolute value of the standardized contrasts calculated from Log₁₀-transformed genome size and the 18S rDNA tree. This calculation shows approximately a right one-half normal positive distribution expected from a phenotypic trait under Brownian evolution. (B) Quantile distribution of the absolute value of the standardized contrasts calculated from Log₁₀-transformed genome size data. These contrasts show a near-linear relationship to the positive quantile standard deviates, indicating the expected right one-half normal positive distribution of the contrasts for a phenotypic trait under Brownian evolution.