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. 2017 Apr 17;114(18):4721–4726. doi: 10.1073/pnas.1621178114

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Fig. S2. — Divergence of horizontally transferred TEs and of orthologous cores genes in insects. (Left) Between-lineage synonymous nucleotide divergence (dS) of core insect genes (blue) according to Li (45) and between-lineage divergence of horizontally transferred TEs (red) according to Kimura 2-parameter distance (47). This distance is the model of substitution used by Li (45). (Right) dS of orthologous cores genes (all species considered) according to divergence times obtained from refs. 23 and 36, discarding dS values >9. dS was averaged over classes of divergence time that were defined to contain similar numbers of values. The fitted curve assumes initial linear relationship between dS and time (coefficient a) and a maximal value of dS (M) due to mutational saturation. According to fitted parameters, the maximal divergence of TEs (0.408) corresponds to a divergence time of 18.3 My, hence to transfers that have occurred <10 My ago. The vertical dashed line at 80 My represents the divergence time below which species were collapsed into lineages.