Fig. 4From: SNP genotyping elucidates the genetic diversity of Magna Graecia grapevine germplasm and its historical origin and disseminationNetwork of first-degree relationships of Mantonico Bianco and Sangiovese. Vertices were colored based on the geographical origin of genotypes (Italy: blue scale based on sub-populations; genotypes from Laucou et al. [22]: grey; Reference: black) and their size was scaled based on the number of first-degree relationships of each genotypeBack to article page