Figure 4
The phylogenetic relationships and genetic distance among the identified genotypes (based on 41 SNVs) suggest the existence of two clonal lineages in Malbec. (a) Neighbor-joining tree based on p-distances, bootstrap supports values > 50% are shown. The orange clade (Group-Fr) included genotypes closely related to the resequenced accessions that have long remained in Europe (C143 and C225). The purple clade (Group-Ar) included genotypes closely related to the resequenced accessions with more than 70 years of clonal propagation in Argentina (MB53 and MB59). (b) Principal coordinates analysis (PCoA) based on genetic distances. PCoA retrieved the same relations as the phylogenetic analyses performed among the genotypes identified, differentiating between Group-Ar (purple) and Group-Fr (orange).
