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MCC trees from Bayesian framework analysis of the AvCoV S1 gene. Data for the relaxed molecular clock for (a) coalescent constant population and (b) coalescent exponential population priors are shown. AvCoV sequences were collected from different animals. Obs.: Ckn (Sweden) indicates AIBV detected in a chicken from Sweden. The years preceding the branches indicate the collection date of the sequences. The posterior probability is represented by the numbers in the branches.
