Figure 5.

Morphospace of wild Vitis species and domesticated grape. (a) ‘Eigenleaves’ showing leaf morphs represented by principal components (PCs) at ± 3SD and shape variance explained by each. Lobing and petiolar sinus variation are indicated. (b) Comparison of wild Vitis species leaf shape (red, black) with V. vinifera ssp. vinifera and V. vinifera ssp. sylvestris (green, dark green, respectively) and highly lobed species (blue). Strong shape variation in lobing and petiolar sinus depth indicated. (c) Hierarchical clustering based on morphology. Phylogenetic groupings indicated in light gray. Groups mentioned in the Results section indicated with Roman numerals.