We also find evidence for
#ConvergentEvolution at the single amino acid scale in the DFR
#enzyme of the brightly red-flowered Plowmania nyctaginoides, native to Southern Mexico. A DFR copy in this species has acquired the same AA substitution in the
#ActiveSite that contributed to the evolution of enhanced DHK (red pigment precursor) activity in the genus
#Iochroma (Solanaceae). This is the only obvious case of likely functional alteration of enzyme specificity in our dataset.