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Phylogenetic tree including the probability of emission type of ancestor nodes (large circles) as pie charts. Small circles indicate the emission type of the species. The ancestral reconstruction was performed using 1000 stochastic character mapped trees (see Methods for further information). NE, non-emitters; MTP, monoterpene emitters only; ISP, isoprene emitters only; TWO, emitters of both monoterpenes and isoprene. MTPs and TWOs are the emission types that store monoterpenes.
