Fig. 1.

Genetic diversity of elite and exotic parents and $\text{elite}\times \text{elite}$ and $\text{elite}\times \text{exotic}$ hybrids. Genetic relationships were estimated among 27 elite parents, three exotic parents, 356 $\text{elite}\times \text{elite}$ hybrids, 113 $\text{elite}\times \text{exotic}$ hybrids, and 581 additional $F.\times ananassa$, F. virginiana, and F. chiloensis individuals from 28,513 SNPs genotyped with a 50K Axiom array. The scatterplot displays the first two scores (PC1 and PC2) from a principal component analysis of the genetic relationship matrix for elite (CA) parents and $\text{elite}\times \text{elite}$ ($\text{CA}\times \text{CA}$) hybrids (blue circles), $\text{elite}\times \text{exotic}$ (CA × exotic) hybrids (red circles), and 385 other CA and 196 non-CA population individuals (gray circles). The different shades of blue and red depict different full-sib families.