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Tanglegram depicting the pattern of infection of algal hosts by viruses. Trees were reconstructed from DNA sequences (partial DNA polymerase gene for viruses, concatenated 18S rDNA and ITS2 for hosts) using Bayesian Inference (BI) and Maximum Likelihood (ML), and the BI tree is presented. Numbers indicate clade support as posterior probabilities (BI, from the analysis of translated sequences)/bootstrap values in% (ML, - indicates numbers < 50). Letters refer to host clades.
