Fig. 4

Neighbour-joining tree for the 216 Myrica accessions based on 84 SSRs. The tree was rooted using the related species ‘Myrica cerifera’ as outgroup. Bootstrap support values greater than 55 % are shown in blue on the branches. Subgroup numbers beside the tree nodes indicate the two groups, and SG2 can be subdivided into five subgroups. The sex of the accession is after the name. The subpopulation IDs are noted on the right. Accessions in different colour indicate they were assigned to corresponding subpopulations. Unstructured accessions are in red