[1] Univ Florida, Inst Food & Agr Sci, Dept Hort Sci, Gainesville, FL 32611 USA
[2] Univ Florida, Ctr Struct Biol, Gainesville, FL 32611 USA
[3] Univ Florida, Biotechnol Program, Gainesville, FL 32611 USA
[4] Univ Florida, Program Plant Mol & Cellular Biol, Gainesville, FL 32611 USA