Figure 2.

Genealogy and population genetics analysis of ITS haplotypes for 906 cherry accessions. (a) The Bayesian inference (BI) tree of 69 ITS haplotypes rooted by P. serotina and P. hypoleuca. The Bayesian posterior probability values ≥0.50 were displayed along the branches. (b) Model-based genetic structure of 69 ITS haplotypes under the K = 5. (c) A parsimonious median-joining network of ITS haplotypes. Node sizes are proportionate to haplotype frequencies within the dataset. Colors within the nodes correspond to the five groups in the key on the right, with black nodes representing inferred intermediate haplotypes. Double slashes between nodes indicate more than eight nucleotide changes. Dotted circles on the network delineate the five lineages identified through Bayesian Analysis Population Structure (BAPS) analysis. (d) Geographic locations of the five major lineages (I–V) were determined based on ITS sequence data. Symbols with different colors correspond to the five lineages in the legend.