Noise and biases in genomic data may underlie radically different hypotheses for the position of Iguania within Squamata
Fig 3
Analysis of the rate of evolution in the molecular dataset.
(A) Time-calibrated topology of Zhen & Wiens (2016) with the PI profile of the molecular dataset superimposed (red curve). The informativeness of the dataset decays by the time spanned by the initial crown squamate radiation (branches highlighted in color). (B) Signal and noise analysis of individual genes. The y-axis represents the probability with which individual genes contribute to the correct resolution of the quartets centered on each of the four backbone branches (colored as in A). The stronger the color, the more likely a given probability-outcome is in the set of genes analyzed.