[1] Carnegie Inst Sci, Dept Plant Biol, Stanford, CA 94305 USA
[2] Univ Cordoba, Dept Bioquim & Biol Mol, E-14071 Cordoba, Spain
[3] Natl Sci & Technol Dev Agcy, Natl Ctr Genet Engn & Biotechnol BIOTEC, Pathum Thani 12120, Thailand
[4] Montana State Univ, Dept Chem & Biol Engn, Bozeman, MT 59171 USA
[5] Montana State Univ, Dept Microbiol, Bozeman, MT 59171 USA
[6] Scuola Super Sant Anna, PlantLab, I-56127 Pisa, Italy
[7] Max Planck Insitute Plant Breeding Res, Dept Plant Dev Biol, D-50829 Cologne, Germany