Journal Article Plant Proteins Research Support, U.S. Gov't, Non-P.H.S. Review pollination syndrome Anthocyanins Brassica species Comment Dioxygenases EC 1.13.11.- Penstemon Plant Nectar Research Support, Non-U.S. Gov't carotenoid synthesis and degradation complex adaptation complex phenotype evolution floral evolution flower color flower color variation gene duplication gene flow genetic architecture hummingbird pollination loss-of-function mutations nectar volume nectary development neofunctionalization phenotypic correlation plant metabolism