Potato Bayesian phylogram based on a combined analysis. Using 12 COSII sequences in (a), six COSII (COS 9, COS 9b, COS 11, COS 3, COS 8 and COS 3c) sequences (b), three COSII (COS 9, COS 9b and COS 11) sequences (c), with COS7b (d), and with two COSII (COS10b and COS1c) (e). Branch lengths are drawn in proportion to the estimated number of substitutions per site and represent an average of the branch length of all trees sampled in the Markov chain that have that branch. Bootstrap values higher than 50% are indicated above branches, the first value refers to Maximum Parsimony and the second to Maximum Likelihood analyses; below branches are the posterior probability values. Species belonging to clades 1+2 are in blue shadow, species in clade 3 in green shadow and species in clade 4 with pink shadow.