Fig. 5

Evolutionary age estimates of individual CynVolERV proviruses. Evolutionary ages were estimated based on proviral 5’/3'LTR nucleotide divergence and nucleotide divergence of proviral gag, pol and env genes from subgroup-specific consensuses. Subgroups were defined for more accurate age estimates. Estimated ages of individual proviruses are indicated by circles, average and median ages are indicated by bold and thin, respectively, horizontal lines.