Supplemental Material for Pincot et al., 2021

File S1 contains the pedigree database with parents and offspring in a standard trio format (offspring, mother, father) with the following passport data: (a) alphanumeric identification number; (b) common names or aliases; (c) accession types (e.g., cultivars, breeding materials, or wild ecotypes); (d) birth years (years of origin); (e) geographic origins; (f) inventor (breeder or institution) names; (g) taxonomic classifications, and (h) DNA-authenticated pedigrees for genotyped UCD accessions. File S2 contains pedigrees of in the Helium format with parents and offspring identified by common names or aliases (Shaw et al. 2014; https://github.com/cardinalb/helium-docs/wiki). File S3 is a complete bibliography of the databases and documents we referenced to build the pedigree database. Files S4 and S5 contain betweenness (<i>B</i>), in-degree (<i>d_i</i>), and out-degree (<i>d_o</i>) statistics, structural role assignments, giant or halo component assignments, and coancestry-based estimates of the genetic contributions of founders and ancestors to cultivars in the California and Cosmopolitan populations, respectively. File S6 contains R code developed to estimate <i>H</i> from <i>A</i> and <i>G</i> as described by Legarra et al. (2009). The example input files from Legarra et al. (2009) for computing the <i>H</i> matrix are included. File S7 contains R code developed for exclusion (paternity-maternity) analyses. Table S1 details the most prominent ecotype founders and their coancestry-based estimates of genetic contribution to the California and Cosmopolitan populations.