Dissection of Floral Pollination Syndromes in Petunia Continued

The petunias displayed many differences and the syndromes were split into phenotypic and genetic components. Several differences were spotted including cell-growth and cell-division patterns in the basal third of the petals, longer ventral stamens, nectar production and metabolism, and enzymatic differentiation in the phenylpropanoid pathway. P. hybrids was studied and one to five tries that could be measured quantitively were identified for a syndrome component. Stamen elongation and nectar volume had large allelic differences. All of this data can provide valuable information for understanding floral syndromes.