Fig. 3. Genetic structure and phylogenetic relationships between the wild and domesticated populations of Cucurbita argyrosperma based on 2861 SNPs.

a Maximum-Likelihood tree with 100 bootstraps (only bootstrap values > 70 shown). b ADMIXTURE analysis using K values ranging from 2 to 4. c Geographic distribution of the wild (top) and domesticated (bottom) populations, with pie chart colors representing the ADMIXTURE assignation of the individuals in K = 4 genetic groups (size of pie charts proportional to sample size). The seed in the maps represents the earliest archaeological record of argyrosperma from Xihuatoxtla, Guerrero (dated 8700 years BP)¹⁰