Fig. 3: Kinship relatedness and clusters of 489 peach accessions.

a The pedigree network of 642 peach accessions with each node representing an accession and arrows indicating parental-offspring relationships. Node size reflects connectivity. b Relationship between pedigree-based and SNP-based kinship coefficients (Pearson’s coefficient r = 0.60, p < 0.001), with blue-to-red color coding density. c Kinship coefficients between ‘Bai Hua Shui Mi’ and its related cultivars, with values indicated in orange (specific accession) and blue/gray (full/half-siblings). d Kinship clustering (Clr1–6) based on kinship coefficient greater than 0.45.