Fig. 5From: Widespread gene duplication and adaptive evolution in the RNA interference pathways of the Drosophila obscura groupDensity plot for posterior distributions of the duplication age. The MCMC posterior of the age of duplication node after 25% burn-in. a Argonaute 2 and b RNAi accessory proteins. The broken red line denotes speciation event in obscura group which was normalised to be 1Back to article page