Independent cluster analyses within forms (wild and domesticated). Each individual is represented by a vertical line, partitioned into K coloured segments that represent the estimated membership for each individual. (*) weedy genotypes. Subgroups: MW, Mesoamerican wild; MD, Mesoamerican domesticated; AW, Andean wild; AD, Andean domesticated. Countries are abbreviated as follow: Ar, Argentina; Bl, Bolivia; Co, Colombia; Cr, Costa Rica; Gt, Guatemala; Mx, Mexico; Pr, Peru.